121230213130312 has 32 divisors (see below), whose sum is σ = 267045574380480. Its totient is φ = 50865823690560.

The previous prime is 121230213130307. The next prime is 121230213130321. The reversal of 121230213130312 is 213031312032121.

121230213130312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×121230213130312³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 52985231868 + ... + 52985234155.

It is an arithmetic number, because the mean of its divisors is an integer number (8345174199390).

Almost surely, 2^{121230213130312} is an apocalyptic number.

It is an amenable number.

121230213130312 is an abundant number, since it is smaller than the sum of its proper divisors (145815361250168).

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

121230213130312 is a wasteful number, since it uses less digits than its factorization.

121230213130312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105970466053 (or 105970466049 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121230213130312 its reverse (213031312032121), we get a palindrome (334261525162433).

The spelling of 121230213130312 in words is "one hundred twenty-one trillion, two hundred thirty billion, two hundred thirteen million, one hundred thirty thousand, three hundred twelve".