2321431104400 has 240 divisors, whose sum is σ = 5760377365824. Its totient is φ = 898383882240.

The previous prime is 2321431104397. The next prime is 2321431104403. The reversal of 2321431104400 is 44011341232.

It is an interprime number because it is at equal distance from previous prime (2321431104397) and next prime (2321431104403).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2321431104403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3428996862 + ... + 3428997538.

Almost surely, 2^{2321431104400} is an apocalyptic number.

2321431104400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2321431104400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2880188682912).

2321431104400 is an abundant number, since it is smaller than the sum of its proper divisors (3438946261424).

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

2321431104400 is a wasteful number, since it uses less digits than its factorization.

2321431104400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 2321431104400 its reverse (44011341232), we get a palindrome (2365442445632).

The spelling of 2321431104400 in words is "two trillion, three hundred twenty-one billion, four hundred thirty-one million, one hundred four thousand, four hundred".