23151430321400 has 96 divisors (see below), whose sum is σ = 54669591636480. Its totient is φ = 9116026416000.

The previous prime is 23151430321381. The next prime is 23151430321417. The reversal of 23151430321400 is 412303415132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7927445 + ... + 10447355.

It is an arithmetic number, because the mean of its divisors is an integer number (569474912880).

Almost surely, 2^{23151430321400} is an apocalyptic number.

23151430321400 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 23151430321400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27334795818240).

23151430321400 is an abundant number, since it is smaller than the sum of its proper divisors (31518161315080).

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

23151430321400 is a wasteful number, since it uses less digits than its factorization.

23151430321400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520645 (or 2520636 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 23151430321400 its reverse (412303415132), we get a palindrome (23563733736532).

The spelling of 23151430321400 in words is "twenty-three trillion, one hundred fifty-one billion, four hundred thirty million, three hundred twenty-one thousand, four hundred".