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31023100223113 = 262151691228983
BaseRepresentation
bin1110000110111001000001…
…10111100101111010001001
311001211210001012021002211011
413003130200313211322021
513031240302124114423
6145551452051403521
76351226225656415
oct703344067457211
9131753035232734
1031023100223113
11998090633a529
1235905995b35a1
13144060948815b
1479375172dd45
1538beae54ab0d
hex1c3720de5e89

31023100223113 has 8 divisors (see below), whose sum is σ = 31035672513216. Its totient is φ = 31010528499600.

The previous prime is 31023100223099. The next prime is 31023100223161. The reversal of 31023100223113 is 31132200132013.

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 31023100223113 - 25 = 31023100223081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31023100223183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135367620 + ... + 135596602.

It is an arithmetic number, because the mean of its divisors is an integer number (3879459064152).

Almost surely, 231023100223113 is an apocalyptic number.

It is an amenable number.

31023100223113 is a deficient number, since it is larger than the sum of its proper divisors (12572290103).

31023100223113 is a wasteful number, since it uses less digits than its factorization.

31023100223113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283295.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31023100223113 its reverse (31132200132013), we get a palindrome (62155300355126).

The spelling of 31023100223113 in words is "thirty-one trillion, twenty-three billion, one hundred million, two hundred twenty-three thousand, one hundred thirteen".

Divisors: 1 2621 51691 228983 135482111 600164443 11836360253 31023100223113