102431220122 has 64 divisors (see below), whose sum is σ = 196959264768. Its totient is φ = 38790576000.

The previous prime is 102431220077. The next prime is 102431220173. The reversal of 102431220122 is 221022134201.

It is a junction number, because it is equal to n+sod(n) for n = 102431220094 and 102431220103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1681163 + ... + 1741025.

It is an arithmetic number, because the mean of its divisors is an integer number (3077488512).

Almost surely, 2^102431220122 is an apocalyptic number.

102431220122 is a deficient number, since it is larger than the sum of its proper divisors (94528044646).

102431220122 is a wasteful number, since it uses less digits than its factorization.

102431220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60195.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 102431220122 its reverse (221022134201), we get a palindrome (323453354323).

The spelling of 102431220122 in words is "one hundred two billion, four hundred thirty-one million, two hundred twenty thousand, one hundred twenty-two".