102001210120320 has 128 divisors (see below), whose sum is σ = 371575836915840. Its totient is φ = 23314562310144.

The previous prime is 102001210120309. The next prime is 102001210120343. The reversal of 102001210120320 is 23021012100201.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102001210120320.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3794674437 + ... + 3794701316.

It is an arithmetic number, because the mean of its divisors is an integer number (2902936225905).

Almost surely, 2^{102001210120320} is an apocalyptic number.

102001210120320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102001210120320 is an abundant number, since it is smaller than the sum of its proper divisors (269574626795520).

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

102001210120320 is an equidigital number, since it uses as much as digits as its factorization.

102001210120320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7589375782 (or 7589375770 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102001210120320 its reverse (23021012100201), we get a palindrome (125022222220521).

The spelling of 102001210120320 in words is "one hundred two trillion, one billion, two hundred ten million, one hundred twenty thousand, three hundred twenty".