230121237420 has 144 divisors (see below), whose sum is σ = 713073134592. Its totient is φ = 60049666560.

The previous prime is 230121237397. The next prime is 230121237421. The reversal of 230121237420 is 24732121032.

230121237420 is a `hidden beast` number, since 2 + 3 + 0 + 1 + 2 + 1 + 237 + 420 = 666.

It is not an unprimeable number, because it can be changed into a prime (230121237421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3622330 + ... + 3685310.

It is an arithmetic number, because the mean of its divisors is an integer number (4951896768).

Almost surely, 2^230121237420 is an apocalyptic number.

230121237420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230121237420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356536567296).

230121237420 is an abundant number, since it is smaller than the sum of its proper divisors (482951897172).

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

230121237420 is a wasteful number, since it uses less digits than its factorization.

230121237420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63432 (or 63427 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

Adding to 230121237420 its reverse (24732121032), we get a palindrome (254853358452).

The spelling of 230121237420 in words is "two hundred thirty billion, one hundred twenty-one million, two hundred thirty-seven thousand, four hundred twenty".