203402023132 has 48 divisors (see below), whose sum is σ = 449865545472. Its totient is φ = 78161950080.

The previous prime is 203402023057. The next prime is 203402023159. The reversal of 203402023132 is 231320204302.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4500778 + ... + 4545745.

It is an arithmetic number, because the mean of its divisors is an integer number (9372198864).

Almost surely, 2^203402023132 is an apocalyptic number.

203402023132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

203402023132 is an abundant number, since it is smaller than the sum of its proper divisors (246463522340).

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

203402023132 is a wasteful number, since it uses less digits than its factorization.

203402023132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9046618 (or 9046616 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 203402023132 its reverse (231320204302), we get a palindrome (434722227434).

The spelling of 203402023132 in words is "two hundred three billion, four hundred two million, twenty-three thousand, one hundred thirty-two".