2131023310202 has 4 divisors (see below), whose sum is σ = 3196534965306. Its totient is φ = 1065511655100.

The previous prime is 2131023310127. The next prime is 2131023310211. The reversal of 2131023310202 is 2020133201312.

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., 2130960567961 + 62742241 = 1459781^2 + 7921^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532755827549 + ... + 532755827552.

Almost surely, 2^{2131023310202} is an apocalyptic number.

2131023310202 is a deficient number, since it is larger than the sum of its proper divisors (1065511655104).

2131023310202 is a wasteful number, since it uses less digits than its factorization.

2131023310202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065511655103.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2131023310202 its reverse (2020133201312), we get a palindrome (4151156511514).

The spelling of 2131023310202 in words is "two trillion, one hundred thirty-one billion, twenty-three million, three hundred ten thousand, two hundred two".