122931143 has 2 divisors, whose sum is σ = 122931144. Its totient is φ = 122931142.

The previous prime is 122931103. The next prime is 122931167. The reversal of 122931143 is 341139221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122931143 - 2⁸ = 122930887 is a prime.

It is a super-2 number, since 2×122931143² = 30224131838572898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122931103) 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, 61465571 + 61465572.

It is an arithmetic number, because the mean of its divisors is an integer number (61465572).

Almost surely, 2^122931143 is an apocalyptic number.

122931143 is a deficient number, since it is larger than the sum of its proper divisors (1).

122931143 is an equidigital number, since it uses as much as digits as its factorization.

122931143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 122931143 is about 11087.4317585273. The cubic root of 122931143 is about 497.2261641256.

The spelling of 122931143 in words is "one hundred twenty-two million, nine hundred thirty-one thousand, one hundred forty-three".