123034231150531 has 4 divisors (see below), whose sum is σ = 124416638242200. Its totient is φ = 121651824058864.

The previous prime is 123034231150451. The next prime is 123034231150583. The reversal of 123034231150531 is 135051132430321.

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 123034231150531 - 2³¹ = 123032083666883 is a prime.

It is a super-2 number, since 2×123034231150531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123034231150031) 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, 691203545701 + ... + 691203545878.

It is an arithmetic number, because the mean of its divisors is an integer number (31104159560550).

Almost surely, 2^{123034231150531} is an apocalyptic number.

123034231150531 is a deficient number, since it is larger than the sum of its proper divisors (1382407091669).

123034231150531 is an equidigital number, since it uses as much as digits as its factorization.

123034231150531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382407091668.

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 123034231150531 its reverse (135051132430321), we get a palindrome (258085363580852).

The spelling of 123034231150531 in words is "one hundred twenty-three trillion, thirty-four billion, two hundred thirty-one million, one hundred fifty thousand, five hundred thirty-one".