31075413481 has 8 divisors (see below), whose sum is σ = 35522000064. Its totient is φ = 26630637360.

The previous prime is 31075413469. The next prime is 31075413487. The reversal of 31075413481 is 18431457013.

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 31075413481 - 2²³ = 31067024873 is a prime.

It is a super-2 number, since 2×31075413481² (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 31075413481.

It is not an unprimeable number, because it can be changed into a prime (31075413487) 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, 415630 + ... + 484663.

It is an arithmetic number, because the mean of its divisors is an integer number (4440250008).

Almost surely, 2^31075413481 is an apocalyptic number.

It is an amenable number.

31075413481 is a deficient number, since it is larger than the sum of its proper divisors (4446586583).

31075413481 is an equidigital number, since it uses as much as digits as its factorization.

31075413481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905231.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 31075413481 in words is "thirty-one billion, seventy-five million, four hundred thirteen thousand, four hundred eighty-one".