12939213135 has 32 divisors (see below), whose sum is σ = 21086178048. Its totient is φ = 6774001920.

The previous prime is 12939213073. The next prime is 12939213167. The reversal of 12939213135 is 53131293921.

It is not a de Polignac number, because 12939213135 - 2⁹ = 12939212623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12939213093 and 12939213102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203044 + ... + 259046.

It is an arithmetic number, because the mean of its divisors is an integer number (658943064).

Almost surely, 2^12939213135 is an apocalyptic number.

12939213135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12939213135 is a deficient number, since it is larger than the sum of its proper divisors (8146964913).

12939213135 is a wasteful number, since it uses less digits than its factorization.

12939213135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56295.

The product of its digits is 43740, while the sum is 39.

The spelling of 12939213135 in words is "twelve billion, nine hundred thirty-nine million, two hundred thirteen thousand, one hundred thirty-five".