123001230554331 has 4 divisors (see below), whose sum is σ = 164001640739112. Its totient is φ = 82000820369552.

The previous prime is 123001230554309. The next prime is 123001230554353. The reversal of 123001230554331 is 133455032100321.

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

It is an interprime number because it is at equal distance from previous prime (123001230554309) and next prime (123001230554353).

It is a cyclic number.

It is not a de Polignac number, because 123001230554331 - 2²¹ = 123001228457179 is a prime.

It is a super-2 number, since 2×123001230554331² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123001230554292 and 123001230554301.

It is not an unprimeable number, because it can be changed into a prime (123001230554231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20500205092386 + ... + 20500205092391.

It is an arithmetic number, because the mean of its divisors is an integer number (41000410184778).

Almost surely, 2^{123001230554331} is an apocalyptic number.

123001230554331 is a deficient number, since it is larger than the sum of its proper divisors (41000410184781).

123001230554331 is an equidigital number, since it uses as much as digits as its factorization.

123001230554331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41000410184780.

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 123001230554331 its reverse (133455032100321), we get a palindrome (256456262654652).

The spelling of 123001230554331 in words is "one hundred twenty-three trillion, one billion, two hundred thirty million, five hundred fifty-four thousand, three hundred thirty-one".