12131935603 has 16 divisors (see below), whose sum is σ = 13110050880. Its totient is φ = 11192237056.

The previous prime is 12131935579. The next prime is 12131935609. The reversal of 12131935603 is 30653913121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12131935603 - 2²⁵ = 12098381171 is a prime.

It is a super-2 number, since 2×12131935603² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12131935609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642351 + ... + 660967.

It is an arithmetic number, because the mean of its divisors is an integer number (819378180).

Almost surely, 2^12131935603 is an apocalyptic number.

12131935603 is a deficient number, since it is larger than the sum of its proper divisors (978115277).

12131935603 is a wasteful number, since it uses less digits than its factorization.

12131935603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19646.

The product of its (nonzero) digits is 14580, while the sum is 34.

The spelling of 12131935603 in words is "twelve billion, one hundred thirty-one million, nine hundred thirty-five thousand, six hundred three".