113212150431 has 4 divisors (see below), whose sum is σ = 150949533912. Its totient is φ = 75474766952.

The previous prime is 113212150421. The next prime is 113212150451. The reversal of 113212150431 is 134051212311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134051212311 = 3 ⋅44683737437.

It is a cyclic number.

It is not a de Polignac number, because 113212150431 - 2⁵ = 113212150399 is a prime.

It is a super-2 number, since 2×113212150431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113212150411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18868691736 + ... + 18868691741.

It is an arithmetic number, because the mean of its divisors is an integer number (37737383478).

Almost surely, 2^113212150431 is an apocalyptic number.

113212150431 is a deficient number, since it is larger than the sum of its proper divisors (37737383481).

113212150431 is an equidigital number, since it uses as much as digits as its factorization.

113212150431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37737383480.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 113212150431 its reverse (134051212311), we get a palindrome (247263362742).

The spelling of 113212150431 in words is "one hundred thirteen billion, two hundred twelve million, one hundred fifty thousand, four hundred thirty-one".