122012313 has 4 divisors (see below), whose sum is σ = 162683088. Its totient is φ = 81341540.

The previous prime is 122012299. The next prime is 122012327. The reversal of 122012313 is 313210221.

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: 313210221 = 3 ⋅104403407.

It is an interprime number because it is at equal distance from previous prime (122012299) and next prime (122012327).

It is a cyclic number.

It is not a de Polignac number, because 122012313 - 2⁹ = 122011801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122012292 and 122012301.

It is not an unprimeable number, because it can be changed into a prime (122012713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20335383 + ... + 20335388.

It is an arithmetic number, because the mean of its divisors is an integer number (40670772).

Almost surely, 2^122012313 is an apocalyptic number.

It is an amenable number.

122012313 is a deficient number, since it is larger than the sum of its proper divisors (40670775).

122012313 is an equidigital number, since it uses as much as digits as its factorization.

122012313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40670774.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 122012313 is about 11045.9183864448. The cubic root of 122012313 is about 495.9842512017.

Adding to 122012313 its reverse (313210221), we get a palindrome (435222534).

The spelling of 122012313 in words is "one hundred twenty-two million, twelve thousand, three hundred thirteen".