31540102113 has 32 divisors (see below), whose sum is σ = 45550657152. Its totient is φ = 19297152000.

The previous prime is 31540102093. The next prime is 31540102169. The reversal of 31540102113 is 31120104513.

It is not a de Polignac number, because 31540102113 - 2¹⁴ = 31540085729 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31540102113.

It is not an unprimeable number, because it can be changed into a prime (31540102313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6586306 + ... + 6591092.

It is an arithmetic number, because the mean of its divisors is an integer number (1423458036).

Almost surely, 2^31540102113 is an apocalyptic number.

It is an amenable number.

31540102113 is a deficient number, since it is larger than the sum of its proper divisors (14010555039).

31540102113 is a wasteful number, since it uses less digits than its factorization.

31540102113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 31540102113 its reverse (31120104513), we get a palindrome (62660206626).

The spelling of 31540102113 in words is "thirty-one billion, five hundred forty million, one hundred two thousand, one hundred thirteen".