122013431 has 2 divisors, whose sum is σ = 122013432. Its totient is φ = 122013430.

The previous prime is 122013407. The next prime is 122013443. The reversal of 122013431 is 134310221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122013431 - 2¹⁴ = 121997047 is a prime.

It is a super-2 number, since 2×122013431² = 29774554688783522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122013461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61006715 + 61006716.

It is an arithmetic number, because the mean of its divisors is an integer number (61006716).

Almost surely, 2^122013431 is an apocalyptic number.

122013431 is a deficient number, since it is larger than the sum of its proper divisors (1).

122013431 is an equidigital number, since it uses as much as digits as its factorization.

122013431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 122013431 is about 11045.9689932572. The cubic root of 122013431 is about 495.9857660999.

Adding to 122013431 its reverse (134310221), we get a palindrome (256323652).

The spelling of 122013431 in words is "one hundred twenty-two million, thirteen thousand, four hundred thirty-one".