20134131999 has 32 divisors (see below), whose sum is σ = 28304640000. Its totient is φ = 12712951680.

The previous prime is 20134131931. The next prime is 20134132001. The reversal of 20134131999 is 99913143102.

It is not a de Polignac number, because 20134131999 - 2⁹ = 20134131487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20134131999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134131799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2060377 + ... + 2070125.

It is an arithmetic number, because the mean of its divisors is an integer number (884520000).

Almost surely, 2^20134131999 is an apocalyptic number.

20134131999 is a deficient number, since it is larger than the sum of its proper divisors (8170508001).

20134131999 is a wasteful number, since it uses less digits than its factorization.

20134131999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10255.

The product of its (nonzero) digits is 52488, while the sum is 42.

The spelling of 20134131999 in words is "twenty billion, one hundred thirty-four million, one hundred thirty-one thousand, nine hundred ninety-nine".