13203152991 has 144 divisors (see below), whose sum is σ = 24213116928. Its totient is φ = 6781449600.

The previous prime is 13203152959. The next prime is 13203153011. The reversal of 13203152991 is 19925130231.

13203152991 is a `hidden beast` number, since 13 + 2 + 0 + 31 + 529 + 91 = 666.

It is not a de Polignac number, because 13203152991 - 2⁵ = 13203152959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203132991) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 43006860 + ... + 43007166.

Almost surely, 2^13203152991 is an apocalyptic number.

13203152991 is a deficient number, since it is larger than the sum of its proper divisors (11009963937).

13203152991 is a wasteful number, since it uses less digits than its factorization.

13203152991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The spelling of 13203152991 in words is "thirteen billion, two hundred three million, one hundred fifty-two thousand, nine hundred ninety-one".