203230312000 has 56 divisors (see below), whose sum is σ = 503299887480. Its totient is φ = 81292121600.

The previous prime is 203230311917. The next prime is 203230312001. The reversal of 203230312000 is 213032302.

It can be written as a sum of positive squares in 4 ways, for example, as 1399358464 + 201830953536 = 37408^2 + 449256^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (203230312001) 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, 12693895 + ... + 12709894.

Almost surely, 2^203230312000 is an apocalyptic number.

203230312000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203230312000 is an abundant number, since it is smaller than the sum of its proper divisors (300069575480).

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

203230312000 is an equidigital number, since it uses as much as digits as its factorization.

203230312000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25403816 (or 25403796 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 203230312000 its reverse (213032302), we get a palindrome (203443344302).

The spelling of 203230312000 in words is "two hundred three billion, two hundred thirty million, three hundred twelve thousand".