23321401023440 has 60 divisors (see below), whose sum is σ = 58714042048524. Its totient is φ = 8610978834432.

The previous prime is 23321401023421. The next prime is 23321401023457. The reversal of 23321401023440 is 4432010412332.

It can be written as a sum of positive squares in 6 ways, for example, as 5056273915456 + 18265127107984 = 2248616^2 + 4273772^2 .

It is a super-2 number, since 2×23321401023440² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 862464329 + ... + 862491368.

Almost surely, 2^{23321401023440} is an apocalyptic number.

23321401023440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23321401023440 is an abundant number, since it is smaller than the sum of its proper divisors (35392641025084).

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

23321401023440 is a wasteful number, since it uses less digits than its factorization.

23321401023440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724955736 (or 1724955717 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 23321401023440 its reverse (4432010412332), we get a palindrome (27753411435772).

The spelling of 23321401023440 in words is "twenty-three trillion, three hundred twenty-one billion, four hundred one million, twenty-three thousand, four hundred forty".