31500104135 has 8 divisors (see below), whose sum is σ = 39443608800. Its totient is φ = 24104427424.

The previous prime is 31500104087. The next prime is 31500104159. The reversal of 31500104135 is 53140100513.

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 31500104135 - 2¹⁰ = 31500103111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 31500104135.

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, 136956860 + ... + 136957089.

It is an arithmetic number, because the mean of its divisors is an integer number (4930451100).

Almost surely, 2^31500104135 is an apocalyptic number.

31500104135 is a deficient number, since it is larger than the sum of its proper divisors (7943504665).

31500104135 is a wasteful number, since it uses less digits than its factorization.

31500104135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273913977.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 31500104135 its reverse (53140100513), we get a palindrome (84640204648).

The spelling of 31500104135 in words is "thirty-one billion, five hundred million, one hundred four thousand, one hundred thirty-five".