122481811913 has 2 divisors, whose sum is σ = 122481811914. Its totient is φ = 122481811912.

The previous prime is 122481811897. The next prime is 122481811943. The reversal of 122481811913 is 319118184221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121914800569 + 567011344 = 349163^2 + 23812^2 .

It is a cyclic number.

It is not a de Polignac number, because 122481811913 - 2⁴ = 122481811897 is a prime.

It is not a weakly prime, because it can be changed into another prime (122481811943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61240905956 + 61240905957.

It is an arithmetic number, because the mean of its divisors is an integer number (61240905957).

Almost surely, 2^122481811913 is an apocalyptic number.

It is an amenable number.

122481811913 is a deficient number, since it is larger than the sum of its proper divisors (1).

122481811913 is an equidigital number, since it uses as much as digits as its factorization.

122481811913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 41.

The spelling of 122481811913 in words is "one hundred twenty-two billion, four hundred eighty-one million, eight hundred eleven thousand, nine hundred thirteen".