312300121 has 4 divisors (see below), whose sum is σ = 356914432. Its totient is φ = 267685812.

The previous prime is 312300113. The next prime is 312300167. The reversal of 312300121 is 121003213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121003213 = 163 ⋅742351.

It is a cyclic number.

It is not a de Polignac number, because 312300121 - 2³ = 312300113 is a prime.

It is a super-2 number, since 2×312300121² = 195062731153229282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312309121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22307145 + ... + 22307158.

It is an arithmetic number, because the mean of its divisors is an integer number (89228608).

Almost surely, 2^312300121 is an apocalyptic number.

It is an amenable number.

312300121 is a deficient number, since it is larger than the sum of its proper divisors (44614311).

312300121 is an equidigital number, since it uses as much as digits as its factorization.

312300121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44614310.

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

The square root of 312300121 is about 17672.0151935200. The cubic root of 312300121 is about 678.4596919367.

Adding to 312300121 its reverse (121003213), we get a palindrome (433303334).

The spelling of 312300121 in words is "three hundred twelve million, three hundred thousand, one hundred twenty-one".