122430931 has 4 divisors (see below), whose sum is σ = 139921072. Its totient is φ = 104940792.

The previous prime is 122430883. The next prime is 122430941. The reversal of 122430931 is 139034221.

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 122430931 - 2²¹ = 120333779 is a prime.

It is a super-3 number, since 3×122430931³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122430896 and 122430905.

It is not an unprimeable number, because it can be changed into a prime (122430941) 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, 8745060 + ... + 8745073.

It is an arithmetic number, because the mean of its divisors is an integer number (34980268).

Almost surely, 2^122430931 is an apocalyptic number.

122430931 is a deficient number, since it is larger than the sum of its proper divisors (17490141).

122430931 is an equidigital number, since it uses as much as digits as its factorization.

122430931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17490140.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 122430931 is about 11064.8511512808. The cubic root of 122430931 is about 496.5508359126.

The spelling of 122430931 in words is "one hundred twenty-two million, four hundred thirty thousand, nine hundred thirty-one".