121300312 has 16 divisors (see below), whose sum is σ = 259929360. Its totient is φ = 51985824.

The previous prime is 121300297. The next prime is 121300327. The reversal of 121300312 is 213003121.

It is an interprime number because it is at equal distance from previous prime (121300297) and next prime (121300327).

It is a junction number, because it is equal to n+sod(n) for n = 121300292 and 121300301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082983 + ... + 1083094.

It is an arithmetic number, because the mean of its divisors is an integer number (16245585).

Almost surely, 2^121300312 is an apocalyptic number.

It is an amenable number.

121300312 is an abundant number, since it is smaller than the sum of its proper divisors (138629048).

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

121300312 is a wasteful number, since it uses less digits than its factorization.

121300312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166090 (or 2166086 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 121300312 is about 11013.6420860676. The cubic root of 121300312 is about 495.0175989390.

Adding to 121300312 its reverse (213003121), we get a palindrome (334303433).

The spelling of 121300312 in words is "one hundred twenty-one million, three hundred thousand, three hundred twelve".