102121423012 has 24 divisors (see below), whose sum is σ = 210831326720. Its totient is φ = 42354506880.

The previous prime is 102121422989. The next prime is 102121423031. The reversal of 102121423012 is 210324121201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58824837 + ... + 58826572.

Almost surely, 2^102121423012 is an apocalyptic number.

It is an amenable number.

102121423012 is an abundant number, since it is smaller than the sum of its proper divisors (108709903708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102121423012 is a wasteful number, since it uses less digits than its factorization.

102121423012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117651451 (or 117651449 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 102121423012 its reverse (210324121201), we get a palindrome (312445544213).

The spelling of 102121423012 in words is "one hundred two billion, one hundred twenty-one million, four hundred twenty-three thousand, twelve".