312120030601 has 2 divisors, whose sum is σ = 312120030602. Its totient is φ = 312120030600.

The previous prime is 312120030569. The next prime is 312120030613. The reversal of 312120030601 is 106030021213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247361996025 + 64758034576 = 497355^2 + 254476^2 .

It is a cyclic number.

It is not a de Polignac number, because 312120030601 - 2⁵ = 312120030569 is a prime.

It is not a weakly prime, because it can be changed into another prime (312120030701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156060015300 + 156060015301.

It is an arithmetic number, because the mean of its divisors is an integer number (156060015301).

Almost surely, 2^312120030601 is an apocalyptic number.

It is an amenable number.

312120030601 is a deficient number, since it is larger than the sum of its proper divisors (1).

312120030601 is an equidigital number, since it uses as much as digits as its factorization.

312120030601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312120030601 its reverse (106030021213), we get a palindrome (418150051814).

The spelling of 312120030601 in words is "three hundred twelve billion, one hundred twenty million, thirty thousand, six hundred one".