123001324031 has 4 divisors (see below), whose sum is σ = 123543180312. Its totient is φ = 122459467752.

The previous prime is 123001323997. The next prime is 123001324049. The reversal of 123001324031 is 130423100321.

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 123001324031 - 2²² = 122997129727 is a prime.

It is a super-2 number, since 2×123001324031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123001323994 and 123001324012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123001324091) 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, 270927800 + ... + 270928253.

It is an arithmetic number, because the mean of its divisors is an integer number (30885795078).

Almost surely, 2^123001324031 is an apocalyptic number.

123001324031 is a deficient number, since it is larger than the sum of its proper divisors (541856281).

123001324031 is an equidigital number, since it uses as much as digits as its factorization.

123001324031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541856280.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123001324031 its reverse (130423100321), we get a palindrome (253424424352).

It can be divided in two parts, 12300 and 1324031, that added together give a palindrome (1336331).

The spelling of 123001324031 in words is "one hundred twenty-three billion, one million, three hundred twenty-four thousand, thirty-one".