202431122123 has 2 divisors, whose sum is σ = 202431122124. Its totient is φ = 202431122122.

The previous prime is 202431122119. The next prime is 202431122129. The reversal of 202431122123 is 321221134202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202431122123 - 2² = 202431122119 is a prime.

It is not a weakly prime, because it can be changed into another prime (202431122129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101215561061 + 101215561062.

It is an arithmetic number, because the mean of its divisors is an integer number (101215561062).

Almost surely, 2^202431122123 is an apocalyptic number.

202431122123 is a deficient number, since it is larger than the sum of its proper divisors (1).

202431122123 is an equidigital number, since it uses as much as digits as its factorization.

202431122123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 202431122123 its reverse (321221134202), we get a palindrome (523652256325).

The spelling of 202431122123 in words is "two hundred two billion, four hundred thirty-one million, one hundred twenty-two thousand, one hundred twenty-three".