122457744713 has 4 divisors (see below), whose sum is σ = 122848983828. Its totient is φ = 122066505600.

The previous prime is 122457744707. The next prime is 122457744719. The reversal of 122457744713 is 317447754221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (122457744707) and next prime (122457744719).

It can be written as a sum of positive squares in 2 ways, for example, as 28691955769 + 93765788944 = 169387^2 + 306212^2 .

It is a cyclic number.

It is not a de Polignac number, because 122457744713 - 2⁴ = 122457744697 is a prime.

It is a super-3 number, since 3×122457744713³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122457744719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195619088 + ... + 195619713.

It is an arithmetic number, because the mean of its divisors is an integer number (30712245957).

Almost surely, 2^122457744713 is an apocalyptic number.

It is an amenable number.

122457744713 is a deficient number, since it is larger than the sum of its proper divisors (391239115).

122457744713 is an equidigital number, since it uses as much as digits as its factorization.

122457744713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391239114.

The product of its digits is 1317120, while the sum is 47.

The spelling of 122457744713 in words is "one hundred twenty-two billion, four hundred fifty-seven million, seven hundred forty-four thousand, seven hundred thirteen".