13121332029 has 24 divisors (see below), whose sum is σ = 20420927072. Its totient is φ = 8070723360.

The previous prime is 13121332013. The next prime is 13121332043. The reversal of 13121332029 is 92023312131.

13121332029 is a `hidden beast` number, since 1 + 312 + 1 + 3 + 320 + 29 = 666.

It is not a de Polignac number, because 13121332029 - 2⁴ = 13121332013 is a prime.

It is a super-2 number, since 2×13121332029² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13121331993 and 13121332011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121332099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223014 + ... + 275640.

Almost surely, 2^13121332029 is an apocalyptic number.

It is an amenable number.

13121332029 is a deficient number, since it is larger than the sum of its proper divisors (7299595043).

13121332029 is a wasteful number, since it uses less digits than its factorization.

13121332029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54777 (or 54774 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 13121332029 in words is "thirteen billion, one hundred twenty-one million, three hundred thirty-two thousand, twenty-nine".