102002131202 has 4 divisors (see below), whose sum is σ = 153003196806. Its totient is φ = 51001065600.

The previous prime is 102002131183. The next prime is 102002131247. The reversal of 102002131202 is 202131200201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 90443946121 + 11558185081 = 300739^2 + 107509^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25500532799 + ... + 25500532802.

Almost surely, 2^102002131202 is an apocalyptic number.

102002131202 is a deficient number, since it is larger than the sum of its proper divisors (51001065604).

102002131202 is an equidigital number, since it uses as much as digits as its factorization.

102002131202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51001065603.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 102002131202 its reverse (202131200201), we get a palindrome (304133331403).

The spelling of 102002131202 in words is "one hundred two billion, two million, one hundred thirty-one thousand, two hundred two".