123301323023531 has 4 divisors (see below), whose sum is σ = 123333324408912. Its totient is φ = 123269321638152.

The previous prime is 123301323023509. The next prime is 123301323023537. The reversal of 123301323023531 is 135320323103321.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123301323023531 is a prime.

It is a super-2 number, since 2×123301323023531² (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 (123301323023537) 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, 16000686911 + ... + 16000694616.

It is an arithmetic number, because the mean of its divisors is an integer number (30833331102228).

Almost surely, 2^{123301323023531} is an apocalyptic number.

123301323023531 is a deficient number, since it is larger than the sum of its proper divisors (32001385381).

123301323023531 is an equidigital number, since it uses as much as digits as its factorization.

123301323023531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32001385380.

The product of its (nonzero) digits is 29160, while the sum is 32.

Adding to 123301323023531 its reverse (135320323103321), we get a palindrome (258621646126852).

The spelling of 123301323023531 in words is "one hundred twenty-three trillion, three hundred one billion, three hundred twenty-three million, twenty-three thousand, five hundred thirty-one".