122898340831 has 4 divisors (see below), whose sum is σ = 140455246672. Its totient is φ = 105341434992.

The previous prime is 122898340793. The next prime is 122898340861. The reversal of 122898340831 is 138043898221.

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

It is a cyclic number.

It is not a de Polignac number, because 122898340831 - 2²⁵ = 122864786399 is a prime.

It is a super-2 number, since 2×122898340831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122898340861) 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, 8778452910 + ... + 8778452923.

It is an arithmetic number, because the mean of its divisors is an integer number (35113811668).

Almost surely, 2^122898340831 is an apocalyptic number.

122898340831 is a deficient number, since it is larger than the sum of its proper divisors (17556905841).

122898340831 is an equidigital number, since it uses as much as digits as its factorization.

122898340831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17556905840.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 122898340831 in words is "one hundred twenty-two billion, eight hundred ninety-eight million, three hundred forty thousand, eight hundred thirty-one".