231263244441513 has 24 divisors (see below), whose sum is σ = 334087367195400. Its totient is φ = 154156824428544.

The previous prime is 231263244441511. The next prime is 231263244441517. The reversal of 231263244441513 is 315144442362132.

It is a happy number.

231263244441513 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 632 + 4 + 4 + 4 + 4 + 1 + 5 + 1 + 3 = 666.

231263244441513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 163270818396009 + 67992426045504 = 12777747^2 + 8245752^2 .

It is not a de Polignac number, because 231263244441513 - 2¹ = 231263244441511 is a prime.

It is a super-3 number, since 3×231263244441513³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (231263244441511) 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, 3273005481 + ... + 3273076137.

It is an arithmetic number, because the mean of its divisors is an integer number (13920306966475).

Almost surely, 2^{231263244441513} is an apocalyptic number.

It is an amenable number.

231263244441513 is a deficient number, since it is larger than the sum of its proper divisors (102824122753887).

231263244441513 is a wasteful number, since it uses less digits than its factorization.

231263244441513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109561 (or 109558 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 45.

The spelling of 231263244441513 in words is "two hundred thirty-one trillion, two hundred sixty-three billion, two hundred forty-four million, four hundred forty-one thousand, five hundred thirteen".