230312121000 has 128 divisors (see below), whose sum is σ = 773848857600. Its totient is φ = 56692204800.

The previous prime is 230312120977. The next prime is 230312121007. The reversal of 230312121000 is 121213032.

230312121000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (230312121007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2913720 + ... + 2991719.

It is an arithmetic number, because the mean of its divisors is an integer number (6045694200).

Almost surely, 2^230312121000 is an apocalyptic number.

230312121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230312121000 is an abundant number, since it is smaller than the sum of its proper divisors (543536736600).

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

230312121000 is a wasteful number, since it uses less digits than its factorization.

230312121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5905476 (or 5905462 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 230312121000 its reverse (121213032), we get a palindrome (230433334032).

The spelling of 230312121000 in words is "two hundred thirty billion, three hundred twelve million, one hundred twenty-one thousand".