122386831481 has 2 divisors, whose sum is σ = 122386831482. Its totient is φ = 122386831480.

The previous prime is 122386831423. The next prime is 122386831493. The reversal of 122386831481 is 184138683221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119364031081 + 3022800400 = 345491^2 + 54980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122386831481 is a prime.

It is a super-2 number, since 2×122386831481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122386831421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61193415740 + 61193415741.

It is an arithmetic number, because the mean of its divisors is an integer number (61193415741).

Almost surely, 2^122386831481 is an apocalyptic number.

It is an amenable number.

122386831481 is a deficient number, since it is larger than the sum of its proper divisors (1).

122386831481 is an equidigital number, since it uses as much as digits as its factorization.

122386831481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442368, while the sum is 47.

The spelling of 122386831481 in words is "one hundred twenty-two billion, three hundred eighty-six million, eight hundred thirty-one thousand, four hundred eighty-one".