122543235431 has 2 divisors, whose sum is σ = 122543235432. Its totient is φ = 122543235430.

The previous prime is 122543235377. The next prime is 122543235467. The reversal of 122543235431 is 134532345221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122543235431 - 2²⁶ = 122476126567 is a prime.

It is a super-2 number, since 2×122543235431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122543235391 and 122543235400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122543235491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61271617715 + 61271617716.

It is an arithmetic number, because the mean of its divisors is an integer number (61271617716).

Almost surely, 2^122543235431 is an apocalyptic number.

122543235431 is a deficient number, since it is larger than the sum of its proper divisors (1).

122543235431 is an equidigital number, since it uses as much as digits as its factorization.

122543235431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 35.

The spelling of 122543235431 in words is "one hundred twenty-two billion, five hundred forty-three million, two hundred thirty-five thousand, four hundred thirty-one".