312124117 has 2 divisors, whose sum is σ = 312124118. Its totient is φ = 312124116.

The previous prime is 312124091. The next prime is 312124139. The reversal of 312124117 is 711421213.

It is a happy number.

It is an a-pointer prime, because the next prime (312124139) can be obtained adding 312124117 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291248356 + 20875761 = 17066^2 + 4569^2 .

It is a cyclic number.

It is not a de Polignac number, because 312124117 - 2¹⁵ = 312091349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312124517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156062058 + 156062059.

It is an arithmetic number, because the mean of its divisors is an integer number (156062059).

Almost surely, 2^312124117 is an apocalyptic number.

It is an amenable number.

312124117 is a deficient number, since it is larger than the sum of its proper divisors (1).

312124117 is an equidigital number, since it uses as much as digits as its factorization.

312124117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 22.

The square root of 312124117 is about 17667.0347540271. The cubic root of 312124117 is about 678.3322140706.

The spelling of 312124117 in words is "three hundred twelve million, one hundred twenty-four thousand, one hundred seventeen".