123132233223021 has 32 divisors (see below), whose sum is σ = 180160713547776. Its totient is φ = 74184755504000.

The previous prime is 123132233222987. The next prime is 123132233223023. The reversal of 123132233223021 is 120322332231321.

It is a cyclic number.

It is not a de Polignac number, because 123132233223021 - 2¹¹ = 123132233220973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123132233223021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123132233223023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2739370 + ... + 15930116.

It is an arithmetic number, because the mean of its divisors is an integer number (5630022298368).

Almost surely, 2^{123132233223021} is an apocalyptic number.

123132233223021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123132233223021 is a deficient number, since it is larger than the sum of its proper divisors (57028480324755).

123132233223021 is a wasteful number, since it uses less digits than its factorization.

123132233223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13192433.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 123132233223021 its reverse (120322332231321), we get a palindrome (243454565454342).

The spelling of 123132233223021 in words is "one hundred twenty-three trillion, one hundred thirty-two billion, two hundred thirty-three million, two hundred twenty-three thousand, twenty-one".