31153025204045 has 8 divisors (see below), whose sum is σ = 37392945900696. Its totient is φ = 24916209726016.

The previous prime is 31153025204039. The next prime is 31153025204149. The reversal of 31153025204045 is 54040252035113.

It can be written as a sum of positive squares in 4 ways, for example, as 14417611484809 + 16735413719236 = 3797053^2 + 4090894^2 .

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 31153025204045 - 2⁸ = 31153025203789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31153025203996 and 31153025204014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776282582 + ... + 776322711.

It is an arithmetic number, because the mean of its divisors is an integer number (4674118237587).

Almost surely, 2^{31153025204045} is an apocalyptic number.

It is an amenable number.

31153025204045 is a deficient number, since it is larger than the sum of its proper divisors (6239920696651).

31153025204045 is a wasteful number, since it uses less digits than its factorization.

31153025204045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552609311.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 31153025204045 its reverse (54040252035113), we get a palindrome (85193277239158).

The spelling of 31153025204045 in words is "thirty-one trillion, one hundred fifty-three billion, twenty-five million, two hundred four thousand, forty-five".