201031020202 has 4 divisors (see below), whose sum is σ = 301546530306. Its totient is φ = 100515510100.

The previous prime is 201031020199. The next prime is 201031020259. The reversal of 201031020202 is 202020130102.

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., 103818639681 + 97212380521 = 322209^2 + 311789^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50257755049 + ... + 50257755052.

Almost surely, 2^201031020202 is an apocalyptic number.

201031020202 is a deficient number, since it is larger than the sum of its proper divisors (100515510104).

201031020202 is a wasteful number, since it uses less digits than its factorization.

201031020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100515510103.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 201031020202 its reverse (202020130102), we get a palindrome (403051150304).

The spelling of 201031020202 in words is "two hundred one billion, thirty-one million, twenty thousand, two hundred two".