312001130333381 has 2 divisors, whose sum is σ = 312001130333382. Its totient is φ = 312001130333380.

The previous prime is 312001130333363. The next prime is 312001130333489. The reversal of 312001130333381 is 183333031100213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280925422288900 + 31075708044481 = 16760830^2 + 5574559^2 .

It is a cyclic number.

It is not a de Polignac number, because 312001130333381 - 2²⁶ = 312001063224517 is a prime.

It is a super-2 number, since 2×312001130333381² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312001130333351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156000565166690 + 156000565166691.

It is an arithmetic number, because the mean of its divisors is an integer number (156000565166691).

Almost surely, 2^{312001130333381} is an apocalyptic number.

It is an amenable number.

312001130333381 is a deficient number, since it is larger than the sum of its proper divisors (1).

312001130333381 is an equidigital number, since it uses as much as digits as its factorization.

312001130333381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

Adding to 312001130333381 its reverse (183333031100213), we get a palindrome (495334161433594).

The spelling of 312001130333381 in words is "three hundred twelve trillion, one billion, one hundred thirty million, three hundred thirty-three thousand, three hundred eighty-one".