23121233011002 has 32 divisors (see below), whose sum is σ = 52848711561600. Its totient is φ = 6606044203968.

The previous prime is 23121233010979. The next prime is 23121233011021. The reversal of 23121233011002 is 20011033212132.

It is a super-2 number, since 2×23121233011002² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 23121233011002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14704024 + ... + 16200332.

It is an arithmetic number, because the mean of its divisors is an integer number (1651522236300).

Almost surely, 2^{23121233011002} is an apocalyptic number.

23121233011002 is an abundant number, since it is smaller than the sum of its proper divisors (29727478550598).

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

23121233011002 is a wasteful number, since it uses less digits than its factorization.

23121233011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864230.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 23121233011002 its reverse (20011033212132), we get a palindrome (43132266223134).

The spelling of 23121233011002 in words is "twenty-three trillion, one hundred twenty-one billion, two hundred thirty-three million, eleven thousand, two".