13206660231 has 16 divisors (see below), whose sum is σ = 18155204064. Its totient is φ = 8533131264.

The previous prime is 13206660211. The next prime is 13206660251.

13206660231 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (13206660211) and next prime (13206660251).

It is not a de Polignac number, because 13206660231 - 2⁶ = 13206660167 is a prime.

It is a super-2 number, since 2×13206660231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13206660211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202950 + ... + 260003.

It is an arithmetic number, because the mean of its divisors is an integer number (1134700254).

Almost surely, 2^13206660231 is an apocalyptic number.

13206660231 is a deficient number, since it is larger than the sum of its proper divisors (4948543833).

13206660231 is a wasteful number, since it uses less digits than its factorization.

13206660231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463250.

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 13206660231 in words is "thirteen billion, two hundred six million, six hundred sixty thousand, two hundred thirty-one".