122943232381 has 2 divisors, whose sum is σ = 122943232382. Its totient is φ = 122943232380.

The previous prime is 122943232327. The next prime is 122943232387. The reversal of 122943232381 is 183232349221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105716669881 + 17226562500 = 325141^2 + 131250^2 .

It is a cyclic number.

It is not a de Polignac number, because 122943232381 - 2²⁵ = 122909677949 is a prime.

It is a super-2 number, since 2×122943232381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122943232387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61471616190 + 61471616191.

It is an arithmetic number, because the mean of its divisors is an integer number (61471616191).

Almost surely, 2^122943232381 is an apocalyptic number.

It is an amenable number.

122943232381 is a deficient number, since it is larger than the sum of its proper divisors (1).

122943232381 is an equidigital number, since it uses as much as digits as its factorization.

122943232381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 40.

The spelling of 122943232381 in words is "one hundred twenty-two billion, nine hundred forty-three million, two hundred thirty-two thousand, three hundred eighty-one".