31053127681 has 4 divisors (see below), whose sum is σ = 31053550000. Its totient is φ = 31052705364.

The previous prime is 31053127667. The next prime is 31053127711. The reversal of 31053127681 is 18672135013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31053127681 - 2⁵ = 31053127649 is a prime.

It is a super-2 number, since 2×31053127681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31053127681.

It is not an unprimeable number, because it can be changed into a prime (31053127601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68931 + ... + 258568.

It is an arithmetic number, because the mean of its divisors is an integer number (7763387500).

Almost surely, 2^31053127681 is an apocalyptic number.

It is an amenable number.

31053127681 is a deficient number, since it is larger than the sum of its proper divisors (422319).

31053127681 is an equidigital number, since it uses as much as digits as its factorization.

31053127681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422318.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 31053127681 in words is "thirty-one billion, fifty-three million, one hundred twenty-seven thousand, six hundred eighty-one".