23611426121 has 4 divisors (see below), whose sum is σ = 23611765632. Its totient is φ = 23611086612.

The previous prime is 23611426073. The next prime is 23611426127. The reversal of 23611426121 is 12162411632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23611426121 is a prime.

It is a super-2 number, since 2×23611426121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23611426127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23345 + ... + 218558.

It is an arithmetic number, because the mean of its divisors is an integer number (5902941408).

Almost surely, 2^23611426121 is an apocalyptic number.

It is an amenable number.

23611426121 is a deficient number, since it is larger than the sum of its proper divisors (339511).

23611426121 is an equidigital number, since it uses as much as digits as its factorization.

23611426121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339510.

The product of its digits is 3456, while the sum is 29.

Adding to 23611426121 its reverse (12162411632), we get a palindrome (35773837753).

The spelling of 23611426121 in words is "twenty-three billion, six hundred eleven million, four hundred twenty-six thousand, one hundred twenty-one".