23121113002 has 16 divisors (see below), whose sum is σ = 38358937512. Its totient is φ = 10382869440.

The previous prime is 23121112969. The next prime is 23121113003. The reversal of 23121113002 is 20031112132.

It can be written as a sum of positive squares in 4 ways, for example, as 21880030561 + 1241082441 = 147919^2 + 35229^2 .

It is not an unprimeable number, because it can be changed into a prime (23121113003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12016249 + ... + 12018172.

Almost surely, 2^23121113002 is an apocalyptic number.

23121113002 is a deficient number, since it is larger than the sum of its proper divisors (15237824510).

23121113002 is a wasteful number, since it uses less digits than its factorization.

23121113002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24034473.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23121113002 its reverse (20031112132), we get a palindrome (43152225134).

The spelling of 23121113002 in words is "twenty-three billion, one hundred twenty-one million, one hundred thirteen thousand, two".