31457143031611 has 12 divisors (see below), whose sum is σ = 34965363749400. Its totient is φ = 28276083614240.

The previous prime is 31457143031609. The next prime is 31457143031687. The reversal of 31457143031611 is 11613034175413.

It is not a de Polignac number, because 31457143031611 - 2¹ = 31457143031609 is a prime.

It is a super-2 number, since 2×31457143031611² (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 (31457143032611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1460530741 + ... + 1460552278.

It is an arithmetic number, because the mean of its divisors is an integer number (2913780312450).

Almost surely, 2^{31457143031611} is an apocalyptic number.

31457143031611 is a deficient number, since it is larger than the sum of its proper divisors (3508220717789).

31457143031611 is a wasteful number, since it uses less digits than its factorization.

31457143031611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921083130 (or 2921083119 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 31457143031611 in words is "thirty-one trillion, four hundred fifty-seven billion, one hundred forty-three million, thirty-one thousand, six hundred eleven".