102121402104320 has 40 divisors (see below), whose sum is σ = 244852018020324. Its totient is φ = 40848560840704.

The previous prime is 102121402104317. The next prime is 102121402104341. The reversal of 102121402104320 is 23401204121201.

It can be written as a sum of positive squares in 2 ways, for example, as 85400368877824 + 16721033226496 = 9241232^2 + 4089136^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19945583789 + ... + 19945588908.

Almost surely, 2^{102121402104320} is an apocalyptic number.

102121402104320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102121402104320 is an abundant number, since it is smaller than the sum of its proper divisors (142730615916004).

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

102121402104320 is an frugal number, since it uses more digits than its factorization.

102121402104320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39891172720 (or 39891172704 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 102121402104320 its reverse (23401204121201), we get a palindrome (125522606225521).

The spelling of 102121402104320 in words is "one hundred two trillion, one hundred twenty-one billion, four hundred two million, one hundred four thousand, three hundred twenty".