312132120029869 has 2 divisors, whose sum is σ = 312132120029870. Its totient is φ = 312132120029868.

The previous prime is 312132120029857. The next prime is 312132120029881. The reversal of 312132120029869 is 968920021231213.

It is a balanced prime because it is at equal distance from previous prime (312132120029857) and next prime (312132120029881).

It can be written as a sum of positive squares in only one way, i.e., 181952851220100 + 130179268809769 = 13488990^2 + 11409613^2 .

It is a cyclic number.

It is not a de Polignac number, because 312132120029869 - 2²¹ = 312132117932717 is a prime.

It is a super-2 number, since 2×312132120029869² (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 (312132120029839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156066060014934 + 156066060014935.

It is an arithmetic number, because the mean of its divisors is an integer number (156066060014935).

Almost surely, 2^{312132120029869} is an apocalyptic number.

It is an amenable number.

312132120029869 is a deficient number, since it is larger than the sum of its proper divisors (1).

312132120029869 is an equidigital number, since it uses as much as digits as its factorization.

312132120029869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 312132120029869 in words is "three hundred twelve trillion, one hundred thirty-two billion, one hundred twenty million, twenty-nine thousand, eight hundred sixty-nine".