23400221123 has 2 divisors, whose sum is σ = 23400221124. Its totient is φ = 23400221122.

The previous prime is 23400221087. The next prime is 23400221167. The reversal of 23400221123 is 32112200432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23400221123 - 2¹⁴ = 23400204739 is a prime.

It is a super-2 number, since 2×23400221123² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23400221095 and 23400221104.

It is not a weakly prime, because it can be changed into another prime (23400223123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700110561 + 11700110562.

It is an arithmetic number, because the mean of its divisors is an integer number (11700110562).

Almost surely, 2^23400221123 is an apocalyptic number.

23400221123 is a deficient number, since it is larger than the sum of its proper divisors (1).

23400221123 is an equidigital number, since it uses as much as digits as its factorization.

23400221123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23400221123 its reverse (32112200432), we get a palindrome (55512421555).

The spelling of 23400221123 in words is "twenty-three billion, four hundred million, two hundred twenty-one thousand, one hundred twenty-three".