102121204402143 has 40 divisors (see below), whose sum is σ = 154926882718080. Its totient is φ = 67021976791440.

The previous prime is 102121204402127. The next prime is 102121204402187. The reversal of 102121204402143 is 341204402121201.

102121204402143 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 2 + 1 + 2 + 0 + 440 + 214 + 3 = 666.

It is not a de Polignac number, because 102121204402143 - 2⁴ = 102121204402127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121204402103) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2536878 + ... + 14514756.

It is an arithmetic number, because the mean of its divisors is an integer number (3873172067952).

Almost surely, 2^{102121204402143} is an apocalyptic number.

102121204402143 is a deficient number, since it is larger than the sum of its proper divisors (52805678315937).

102121204402143 is a wasteful number, since it uses less digits than its factorization.

102121204402143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11979529 (or 11979520 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 102121204402143 its reverse (341204402121201), we get a palindrome (443325606523344).

The spelling of 102121204402143 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred four million, four hundred two thousand, one hundred forty-three".