102140232205 has 32 divisors (see below), whose sum is σ = 140776755840. Its totient is φ = 70359886080.

The previous prime is 102140232137. The next prime is 102140232239. The reversal of 102140232205 is 502232041201.

It is a happy number.

It is not a de Polignac number, because 102140232205 - 2²⁷ = 102006014477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9956859 + ... + 9967111.

It is an arithmetic number, because the mean of its divisors is an integer number (4399273620).

Almost surely, 2^102140232205 is an apocalyptic number.

It is an amenable number.

102140232205 is a deficient number, since it is larger than the sum of its proper divisors (38636523635).

102140232205 is a wasteful number, since it uses less digits than its factorization.

102140232205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19821.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 102140232205 its reverse (502232041201), we get a palindrome (604372273406).

The spelling of 102140232205 in words is "one hundred two billion, one hundred forty million, two hundred thirty-two thousand, two hundred five".