23103121213 has 6 divisors (see below), whose sum is σ = 24151278494. Its totient is φ = 22098637176.

The previous prime is 23103121207. The next prime is 23103121243. The reversal of 23103121213 is 31212130132.

It can be written as a sum of positive squares in only one way, i.e., 17587533924 + 5515587289 = 132618^2 + 74267^2 .

It is not a de Polignac number, because 23103121213 - 2¹³ = 23103113021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23103121243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21836070 + ... + 21837127.

Almost surely, 2^23103121213 is an apocalyptic number.

23103121213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23103121213 is a deficient number, since it is larger than the sum of its proper divisors (1048157281).

23103121213 is an equidigital number, since it uses as much as digits as its factorization.

23103121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43673243 (or 43673220 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23103121213 its reverse (31212130132), we get a palindrome (54315251345).

The spelling of 23103121213 in words is "twenty-three billion, one hundred three million, one hundred twenty-one thousand, two hundred thirteen".