121312302230 has 48 divisors (see below), whose sum is σ = 255695468256. Its totient is φ = 41317315200.

The previous prime is 121312302217. The next prime is 121312302271. The reversal of 121312302230 is 32203213121.

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, 745799 + ... + 893778.

It is an arithmetic number, because the mean of its divisors is an integer number (5326988922).

Almost surely, 2^121312302230 is an apocalyptic number.

121312302230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121312302230 is an abundant number, since it is smaller than the sum of its proper divisors (134383166026).

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

121312302230 is a wasteful number, since it uses less digits than its factorization.

121312302230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639749 (or 1639742 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121312302230 its reverse (32203213121), we get a palindrome (153515515351).

The spelling of 121312302230 in words is "one hundred twenty-one billion, three hundred twelve million, three hundred two thousand, two hundred thirty".