312000121093 has 2 divisors, whose sum is σ = 312000121094. Its totient is φ = 312000121092.

The previous prime is 312000121087. The next prime is 312000121189. The reversal of 312000121093 is 390121000213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262981275489 + 49018845604 = 512817^2 + 221402^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312000121093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312000121033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156000060546 + 156000060547.

It is an arithmetic number, because the mean of its divisors is an integer number (156000060547).

Almost surely, 2^312000121093 is an apocalyptic number.

It is an amenable number.

312000121093 is a deficient number, since it is larger than the sum of its proper divisors (1).

312000121093 is an equidigital number, since it uses as much as digits as its factorization.

312000121093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 312000121093 in words is "three hundred twelve billion, one hundred twenty-one thousand, ninety-three".