102131210002 has 16 divisors (see below), whose sum is σ = 158373091800. Its totient is φ = 49363032960.

The previous prime is 102131209997. The next prime is 102131210009. The reversal of 102131210002 is 200012131201.

It can be written as a sum of positive squares in 4 ways, for example, as 97039103121 + 5092106881 = 311511^2 + 71359^2 .

It is not an unprimeable number, because it can be changed into a prime (102131210009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5704377 + ... + 5722252.

Almost surely, 2^102131210002 is an apocalyptic number.

102131210002 is a deficient number, since it is larger than the sum of its proper divisors (56241881798).

102131210002 is a wasteful number, since it uses less digits than its factorization.

102131210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11426781.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 102131210002 its reverse (200012131201), we get a palindrome (302143341203).

The spelling of 102131210002 in words is "one hundred two billion, one hundred thirty-one million, two hundred ten thousand, two".