231113210445 has 128 divisors (see below), whose sum is σ = 455216993280. Its totient is φ = 110512512000.

The previous prime is 231113210407. The next prime is 231113210527. The reversal of 231113210445 is 544012311132.

231113210445 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 1 + 3 + 210 + 445 = 666.

It is not a de Polignac number, because 231113210445 - 2²² = 231109016141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 42010195 + ... + 42015695.

It is an arithmetic number, because the mean of its divisors is an integer number (3556382760).

Almost surely, 2^231113210445 is an apocalyptic number.

It is an amenable number.

231113210445 is a deficient number, since it is larger than the sum of its proper divisors (224103782835).

231113210445 is a wasteful number, since it uses less digits than its factorization.

231113210445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6212 (or 6206 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 231113210445 its reverse (544012311132), we get a palindrome (775125521577).

The spelling of 231113210445 in words is "two hundred thirty-one billion, one hundred thirteen million, two hundred ten thousand, four hundred forty-five".