122102153231 has 2 divisors, whose sum is σ = 122102153232. Its totient is φ = 122102153230.

The previous prime is 122102153213. The next prime is 122102153267. The reversal of 122102153231 is 132351201221.

Together with previous prime (122102153213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122102153231 is a prime.

It is a super-2 number, since 2×122102153231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122102153197 and 122102153206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122102153531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61051076615 + 61051076616.

It is an arithmetic number, because the mean of its divisors is an integer number (61051076616).

Almost surely, 2^122102153231 is an apocalyptic number.

122102153231 is a deficient number, since it is larger than the sum of its proper divisors (1).

122102153231 is an equidigital number, since it uses as much as digits as its factorization.

122102153231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 122102153231 its reverse (132351201221), we get a palindrome (254453354452).

The spelling of 122102153231 in words is "one hundred twenty-two billion, one hundred two million, one hundred fifty-three thousand, two hundred thirty-one".