20012102535 has 16 divisors (see below), whose sum is σ = 32023065600. Its totient is φ = 10671887520.

The previous prime is 20012102521. The next prime is 20012102557. The reversal of 20012102535 is 53520121002.

It is not a de Polignac number, because 20012102535 - 2¹⁰ = 20012101511 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65470 + ... + 210500.

It is an arithmetic number, because the mean of its divisors is an integer number (2001441600).

Almost surely, 2^20012102535 is an apocalyptic number.

20012102535 is a deficient number, since it is larger than the sum of its proper divisors (12010963065).

20012102535 is a wasteful number, since it uses less digits than its factorization.

20012102535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154238.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 20012102535 its reverse (53520121002), we get a palindrome (73532223537).

The spelling of 20012102535 in words is "twenty billion, twelve million, one hundred two thousand, five hundred thirty-five".