31111353465445 has 16 divisors (see below), whose sum is σ = 40781821190400. Its totient is φ = 22596310440000.

The previous prime is 31111353465431. The next prime is 31111353465481. The reversal of 31111353465445 is 54456435311113.

It is a happy number.

It is not a de Polignac number, because 31111353465445 - 2²⁵ = 31111319911013 is a prime.

It is a super-2 number, since 2×31111353465445² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31111353465395 and 31111353465404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376563870 + ... + 376646479.

It is an arithmetic number, because the mean of its divisors is an integer number (2548863824400).

Almost surely, 2^{31111353465445} is an apocalyptic number.

It is an amenable number.

31111353465445 is a deficient number, since it is larger than the sum of its proper divisors (9670467724955).

31111353465445 is a wasteful number, since it uses less digits than its factorization.

31111353465445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753211116.

The product of its digits is 1296000, while the sum is 46.

Adding to 31111353465445 its reverse (54456435311113), we get a palindrome (85567788776558).

The spelling of 31111353465445 in words is "thirty-one trillion, one hundred eleven billion, three hundred fifty-three million, four hundred sixty-five thousand, four hundred forty-five".