321126013420 has 48 divisors (see below), whose sum is σ = 679465620288. Its totient is φ = 127481200640.

The previous prime is 321126013399. The next prime is 321126013423. The reversal of 321126013420 is 24310621123.

It is not an unprimeable number, because it can be changed into a prime (321126013423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2065944 + ... + 2215936.

It is an arithmetic number, because the mean of its divisors is an integer number (14155533756).

Almost surely, 2^321126013420 is an apocalyptic number.

It is an amenable number.

321126013420 is an abundant number, since it is smaller than the sum of its proper divisors (358339606868).

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

321126013420 is a wasteful number, since it uses less digits than its factorization.

321126013420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150810 (or 150808 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 321126013420 its reverse (24310621123), we get a palindrome (345436634543).

The spelling of 321126013420 in words is "three hundred twenty-one billion, one hundred twenty-six million, thirteen thousand, four hundred twenty".