102123151321200 has 120 divisors (see below), whose sum is σ = 327212049350400. Its totient is φ = 27226384193280.

The previous prime is 102123151321181. The next prime is 102123151321259. The reversal of 102123151321200 is 2123151321201.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5022840 + ... + 15148439.

It is an arithmetic number, because the mean of its divisors is an integer number (2726767077920).

Almost surely, 2^{102123151321200} is an apocalyptic number.

102123151321200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102123151321200 is an abundant number, since it is smaller than the sum of its proper divisors (225088898029200).

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

102123151321200 is a wasteful number, since it uses less digits than its factorization.

102123151321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20175519 (or 20175508 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

Subtracting from 102123151321200 its reverse (2123151321201), we obtain a palindrome (99999999999999).

The spelling of 102123151321200 in words is "one hundred two trillion, one hundred twenty-three billion, one hundred fifty-one million, three hundred twenty-one thousand, two hundred".