31253404611 has 64 divisors (see below), whose sum is σ = 49372323840. Its totient is φ = 17336592000.

The previous prime is 31253404591. The next prime is 31253404613. The reversal of 31253404611 is 11640435213.

It is not a de Polignac number, because 31253404611 - 2⁵ = 31253404579 is a prime.

It is a super-2 number, since 2×31253404611² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31253404613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34306246 + ... + 34307156.

It is an arithmetic number, because the mean of its divisors is an integer number (771442560).

Almost surely, 2^31253404611 is an apocalyptic number.

31253404611 is a deficient number, since it is larger than the sum of its proper divisors (18118919229).

31253404611 is a wasteful number, since it uses less digits than its factorization.

31253404611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 31253404611 its reverse (11640435213), we get a palindrome (42893839824).

The spelling of 31253404611 in words is "thirty-one billion, two hundred fifty-three million, four hundred four thousand, six hundred eleven".