202142423404 has 24 divisors (see below), whose sum is σ = 374132427200. Its totient is φ = 95297867280.

The previous prime is 202142423401. The next prime is 202142423411. The reversal of 202142423404 is 404324241202.

It is not an unprimeable number, because it can be changed into a prime (202142423401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6286734 + ... + 6318805.

Almost surely, 2^202142423404 is an apocalyptic number.

It is an amenable number.

202142423404 is a deficient number, since it is larger than the sum of its proper divisors (171990003796).

202142423404 is a wasteful number, since it uses less digits than its factorization.

202142423404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12605773 (or 12605771 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 202142423404 its reverse (404324241202), we get a palindrome (606466664606).

The spelling of 202142423404 in words is "two hundred two billion, one hundred forty-two million, four hundred twenty-three thousand, four hundred four".