202143023400 has 96 divisors (see below), whose sum is σ = 626978620800. Its totient is φ = 53875968000.

The previous prime is 202143023399. The next prime is 202143023419. The reversal of 202143023400 is 4320341202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1044225 + ... + 1222575.

It is an arithmetic number, because the mean of its divisors is an integer number (6531027300).

Almost surely, 2^202143023400 is an apocalyptic number.

202143023400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202143023400 is an abundant number, since it is smaller than the sum of its proper divisors (424835597400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202143023400 is a wasteful number, since it uses less digits than its factorization.

202143023400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180259 (or 180250 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 202143023400 its reverse (4320341202), we get a palindrome (206463364602).

The spelling of 202143023400 in words is "two hundred two billion, one hundred forty-three million, twenty-three thousand, four hundred".