13201772031 has 18 divisors (see below), whose sum is σ = 22182570072. Its totient is φ = 7543869480.

The previous prime is 13201771969. The next prime is 13201772057. The reversal of 13201772031 is 13027710231.

It is not a de Polignac number, because 13201772031 - 2⁶ = 13201771967 is a prime.

It is a super-2 number, since 2×13201772031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13201771986 and 13201772004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201772431) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14967555 + ... + 14968436.

It is an arithmetic number, because the mean of its divisors is an integer number (1232365004).

Almost surely, 2^13201772031 is an apocalyptic number.

13201772031 is a deficient number, since it is larger than the sum of its proper divisors (8980798041).

13201772031 is a wasteful number, since it uses less digits than its factorization.

13201772031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29936011 (or 29936001 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The spelling of 13201772031 in words is "thirteen billion, two hundred one million, seven hundred seventy-two thousand, thirty-one".