31504331053 has 32 divisors (see below), whose sum is σ = 36089222400. Its totient is φ = 27261950976.

The previous prime is 31504331041. The next prime is 31504331057. The reversal of 31504331053 is 35013340513.

It is not a de Polignac number, because 31504331053 - 2²¹ = 31502233901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31504331057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10197333 + ... + 10200421.

It is an arithmetic number, because the mean of its divisors is an integer number (1127788200).

Almost surely, 2^31504331053 is an apocalyptic number.

It is an amenable number.

31504331053 is a deficient number, since it is larger than the sum of its proper divisors (4584891347).

31504331053 is a wasteful number, since it uses less digits than its factorization.

31504331053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541.

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 31504331053 its reverse (35013340513), we get a palindrome (66517671566).

The spelling of 31504331053 in words is "thirty-one billion, five hundred four million, three hundred thirty-one thousand, fifty-three".