23213731421804 has 96 divisors (see below), whose sum is σ = 50886964434432. Its totient is φ = 9001751616000.

The previous prime is 23213731421801. The next prime is 23213731421807. The reversal of 23213731421804 is 40812413731232.

It is an interprime number because it is at equal distance from previous prime (23213731421801) and next prime (23213731421807).

It is a super-2 number, since 2×23213731421804² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23213731421801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63540899 + ... + 63905189.

It is an arithmetic number, because the mean of its divisors is an integer number (530072546192).

Almost surely, 2^{23213731421804} 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 23213731421804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25443482217216).

23213731421804 is an abundant number, since it is smaller than the sum of its proper divisors (27673233012628).

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

23213731421804 is a wasteful number, since it uses less digits than its factorization.

23213731421804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365287 (or 365285 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 23213731421804 in words is "twenty-three trillion, two hundred thirteen billion, seven hundred thirty-one million, four hundred twenty-one thousand, eight hundred four".