102312242021440 has 56 divisors (see below), whose sum is σ = 265779301442112. Its totient is φ = 37204451642880.

The previous prime is 102312242021419. The next prime is 102312242021453. The reversal of 102312242021440 is 44120242213201.

It is a junction number, because it is equal to n+sod(n) for n = 102312242021399 and 102312242021408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14532985404 + ... + 14532992443.

Almost surely, 2^{102312242021440} is an apocalyptic number.

102312242021440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102312242021440 is an abundant number, since it is smaller than the sum of its proper divisors (163467059420672).

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

102312242021440 is a wasteful number, since it uses less digits than its factorization.

102312242021440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29065977875 (or 29065977865 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 102312242021440 its reverse (44120242213201), we get a palindrome (146432484234641).

The spelling of 102312242021440 in words is "one hundred two trillion, three hundred twelve billion, two hundred forty-two million, twenty-one thousand, four hundred forty".