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31023212110001 = 531123521232079
BaseRepresentation
bin1110000110111001001111…
…00010011010000010110001
311001211210022222210112202222
413003130213202122002301
513031241014300010001
6145551511125450425
76351232055000306
oct703344742320261
9131753288715688
1031023212110001
11998096350a831
12359060ab70a15
131440626701307
147937625370ad
1538beb929c61b
hex1c372789a0b1

31023212110001 has 8 divisors (see below), whose sum is σ = 31636702327680. Its totient is φ = 30410764358832.

The previous prime is 31023212109979. The next prime is 31023212110039. The reversal of 31023212110001 is 10001121232013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31023212110001 - 26 = 31023212109937 is a prime.

It is a super-2 number, since 2×310232121100012 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31023212110081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260556521 + ... + 260675558.

It is an arithmetic number, because the mean of its divisors is an integer number (3954587790960).

Almost surely, 231023212110001 is an apocalyptic number.

It is an amenable number.

31023212110001 is a deficient number, since it is larger than the sum of its proper divisors (613490217679).

31023212110001 is a wasteful number, since it uses less digits than its factorization.

31023212110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521233255.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31023212110001 its reverse (10001121232013), we get a palindrome (41024333342014).

The spelling of 31023212110001 in words is "thirty-one trillion, twenty-three billion, two hundred twelve million, one hundred ten thousand, one".

Divisors: 1 53 1123 59519 521232079 27625300187 585343624717 31023212110001