202131223004 has 12 divisors (see below), whose sum is σ = 358207231200. Its totient is φ = 99786299808.

The previous prime is 202131223001. The next prime is 202131223009. The reversal of 202131223004 is 400322131202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202131223001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319827569 + ... + 319828200.

It is an arithmetic number, because the mean of its divisors is an integer number (29850602600).

Almost surely, 2^202131223004 is an apocalyptic number.

It is an amenable number.

202131223004 is a deficient number, since it is larger than the sum of its proper divisors (156076008196).

202131223004 is a wasteful number, since it uses less digits than its factorization.

202131223004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639655852 (or 639655850 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 202131223004 its reverse (400322131202), we get a palindrome (602453354206).

The spelling of 202131223004 in words is "two hundred two billion, one hundred thirty-one million, two hundred twenty-three thousand, four".