122938203197 has 4 divisors (see below), whose sum is σ = 125553909696. Its totient is φ = 120322496700.

The previous prime is 122938203163. The next prime is 122938203203. The reversal of 122938203197 is 791302839221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 791302839221 = 137 ⋅5775933133.

It is a cyclic number.

It is not a de Polignac number, because 122938203197 - 2³⁴ = 105758334013 is a prime.

It is a super-2 number, since 2×122938203197² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 2615706451 = 122938203197 / (1 + 2 + 2 + 9 + 3 + 8 + 2 + 0 + 3 + 1 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122038203197) 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, 1307853179 + ... + 1307853272.

It is an arithmetic number, because the mean of its divisors is an integer number (31388477424).

Almost surely, 2^122938203197 is an apocalyptic number.

It is an amenable number.

122938203197 is a deficient number, since it is larger than the sum of its proper divisors (2615706499).

122938203197 is an equidigital number, since it uses as much as digits as its factorization.

122938203197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615706498.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 122938203197 in words is "one hundred twenty-two billion, nine hundred thirty-eight million, two hundred three thousand, one hundred ninety-seven".