234623155631 has 4 divisors (see below), whose sum is σ = 240345671664. Its totient is φ = 228900639600.

The previous prime is 234623155601. The next prime is 234623155633. The reversal of 234623155631 is 136551326432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 234623155631 - 2⁶ = 234623155567 is a prime.

It is a super-2 number, since 2×234623155631² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 5722515991 = 234623155631 / (2 + 3 + 4 + 6 + 2 + 3 + 1 + 5 + 5 + 6 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234623155633) 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, 2861257955 + ... + 2861258036.

It is an arithmetic number, because the mean of its divisors is an integer number (60086417916).

Almost surely, 2^234623155631 is an apocalyptic number.

234623155631 is a deficient number, since it is larger than the sum of its proper divisors (5722516033).

234623155631 is an equidigital number, since it uses as much as digits as its factorization.

234623155631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5722516032.

The product of its digits is 388800, while the sum is 41.

The spelling of 234623155631 in words is "two hundred thirty-four billion, six hundred twenty-three million, one hundred fifty-five thousand, six hundred thirty-one".