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31020122213301 = 3134347530974131
BaseRepresentation
bin1110000110110011011110…
…10111011000101110110101
311001211111100122121112100110
413003121233113120232311
513031213202241311201
6145550240350333233
76351062355212154
oct703315727305665
9131744318545313
1031020122213301
11997a6183296a1
12358baa81ba219
131440253502b80
1479354c00d59b
1538bd87d9c6d6
hex1c366f5d8bb5

31020122213301 has 64 divisors (see below), whose sum is σ = 46556698890240. Its totient is φ = 18244975230720.

The previous prime is 31020122213293. The next prime is 31020122213329. The reversal of 31020122213301 is 10331222102013.

It is not a de Polignac number, because 31020122213301 - 23 = 31020122213293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020122213501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 418413006 + ... + 418487136.

It is an arithmetic number, because the mean of its divisors is an integer number (727448420160).

Almost surely, 231020122213301 is an apocalyptic number.

It is an amenable number.

31020122213301 is a deficient number, since it is larger than the sum of its proper divisors (15536576676939).

31020122213301 is a wasteful number, since it uses less digits than its factorization.

31020122213301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79546.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31020122213301 its reverse (10331222102013), we get a palindrome (41351344315314).

The spelling of 31020122213301 in words is "thirty-one trillion, twenty billion, one hundred twenty-two million, two hundred thirteen thousand, three hundred one".

Divisors: 1 3 13 39 43 47 129 141 559 611 1677 1833 2021 5309 6063 15927 26273 69017 74131 78819 207051 222393 228287 249523 684861 748569 963703 2891109 2967731 3187633 3243799 3484157 8903193 9562899 9731397 10452471 10729489 32188467 41439229 45294041 124317687 135882123 139483357 149818751 393561479 418450071 449456253 1180684437 1947643763 5116299227 5842931289 15348897681 16923143597 18497389513 50769430791 55492168539 220000866761 240466063669 660002600283 721398191007 795387749059 2386163247177 10340040737767 31020122213301