321231424132122 has 128 divisors (see below), whose sum is σ = 768990826856448. Its totient is φ = 87524645342400.

The previous prime is 321231424132117. The next prime is 321231424132127. The reversal of 321231424132122 is 221231424132123.

It is an interprime number because it is at equal distance from previous prime (321231424132117) and next prime (321231424132127).

It is not an unprimeable number, because it can be changed into a prime (321231424132127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 182807833 + ... + 184556675.

It is an arithmetic number, because the mean of its divisors is an integer number (6007740834816).

Almost surely, 2^{321231424132122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321231424132122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384495413428224).

321231424132122 is an abundant number, since it is smaller than the sum of its proper divisors (447759402724326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321231424132122 is a wasteful number, since it uses less digits than its factorization.

321231424132122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750944.

The product of its digits is 27648, while the sum is 33.

Adding to 321231424132122 its reverse (221231424132123), we get a palindrome (542462848264245).

Subtracting from 321231424132122 its reverse (221231424132123), we obtain a palindrome (99999999999999).

The spelling of 321231424132122 in words is "three hundred twenty-one trillion, two hundred thirty-one billion, four hundred twenty-four million, one hundred thirty-two thousand, one hundred twenty-two".