312132120030811 has 2 divisors, whose sum is σ = 312132120030812. Its totient is φ = 312132120030810.

The previous prime is 312132120030793. The next prime is 312132120030883. The reversal of 312132120030811 is 118030021231213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312132120030811 - 2³⁹ = 311582364216923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312132120030811.

It is not a weakly prime, because it can be changed into another prime (312132120037811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156066060015405 + 156066060015406.

It is an arithmetic number, because the mean of its divisors is an integer number (156066060015406).

Almost surely, 2^{312132120030811} is an apocalyptic number.

312132120030811 is a deficient number, since it is larger than the sum of its proper divisors (1).

312132120030811 is an equidigital number, since it uses as much as digits as its factorization.

312132120030811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 312132120030811 in words is "three hundred twelve trillion, one hundred thirty-two billion, one hundred twenty million, thirty thousand, eight hundred eleven".