23121130230 has 48 divisors (see below), whose sum is σ = 65579935824. Its totient is φ = 5605122240.

The previous prime is 23121130223. The next prime is 23121130261. The reversal of 23121130230 is 3203112132.

It is a super-2 number, since 2×23121130230² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

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, 11676349 + ... + 11678328.

It is an arithmetic number, because the mean of its divisors is an integer number (1366248663).

Almost surely, 2^23121130230 is an apocalyptic number.

23121130230 is an abundant number, since it is smaller than the sum of its proper divisors (42458805594).

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

23121130230 is a wasteful number, since it uses less digits than its factorization.

23121130230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23354701 (or 23354698 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23121130230 its reverse (3203112132), we get a palindrome (26324242362).

It can be divided in two parts, 23121 and 130230, that added together give a palindrome (153351).

The spelling of 23121130230 in words is "twenty-three billion, one hundred twenty-one million, one hundred thirty thousand, two hundred thirty".