202143356452402 has 4 divisors (see below), whose sum is σ = 303215034678606. Its totient is φ = 101071678226200.

The previous prime is 202143356452391. The next prime is 202143356452451. The reversal of 202143356452402 is 204254653341202.

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., 200788928340001 + 1354428112401 = 14170001^2 + 1163799^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50535839113099 + ... + 50535839113102.

Almost surely, 2^{202143356452402} is an apocalyptic number.

202143356452402 is a deficient number, since it is larger than the sum of its proper divisors (101071678226204).

202143356452402 is a wasteful number, since it uses less digits than its factorization.

202143356452402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101071678226203.

The product of its (nonzero) digits is 1382400, while the sum is 43.

The spelling of 202143356452402 in words is "two hundred two trillion, one hundred forty-three billion, three hundred fifty-six million, four hundred fifty-two thousand, four hundred two".