2321540451232 has 48 divisors (see below), whose sum is σ = 4730659877160. Its totient is φ = 1120145732608.

The previous prime is 2321540451199. The next prime is 2321540451281.

2321540451232 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 2215918051216 + 105622400016 = 1488596^2 + 324996^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1075458 + ... + 2408254.

Almost surely, 2^{2321540451232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2321540451232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2365329938580).

2321540451232 is an abundant number, since it is smaller than the sum of its proper divisors (2409119425928).

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

2321540451232 is a wasteful number, since it uses less digits than its factorization.

2321540451232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334713 (or 1334705 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

It can be divided in two parts, 2321540 and 451232, that added together give a palindrome (2772772).

The spelling of 2321540451232 in words is "two trillion, three hundred twenty-one billion, five hundred forty million, four hundred fifty-one thousand, two hundred thirty-two".