102002013332121 has 16 divisors (see below), whose sum is σ = 155516900880384. Its totient is φ = 58254891692304.

The previous prime is 102002013332099. The next prime is 102002013332137. The reversal of 102002013332121 is 121233310200201.

It is not a de Polignac number, because 102002013332121 - 2⁶ = 102002013332057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (102002013332221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1332172011 + ... + 1332248576.

It is an arithmetic number, because the mean of its divisors is an integer number (9719806305024).

Almost surely, 2^{102002013332121} is an apocalyptic number.

It is an amenable number.

102002013332121 is a deficient number, since it is larger than the sum of its proper divisors (53514887548263).

102002013332121 is a wasteful number, since it uses less digits than its factorization.

102002013332121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664422420.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 102002013332121 its reverse (121233310200201), we get a palindrome (223235323532322).

The spelling of 102002013332121 in words is "one hundred two trillion, two billion, thirteen million, three hundred thirty-two thousand, one hundred twenty-one".