312141214409989 has 2 divisors, whose sum is σ = 312141214409990. Its totient is φ = 312141214409988.

The previous prime is 312141214409977. The next prime is 312141214410017. The reversal of 312141214409989 is 989904412141213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252852677400964 + 59288537009025 = 15901342^2 + 7699905^2 .

It is a cyclic number.

It is not a de Polignac number, because 312141214409989 - 2³⁵ = 312106854671621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312141214409389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156070607204994 + 156070607204995.

It is an arithmetic number, because the mean of its divisors is an integer number (156070607204995).

Almost surely, 2^{312141214409989} is an apocalyptic number.

It is an amenable number.

312141214409989 is a deficient number, since it is larger than the sum of its proper divisors (1).

312141214409989 is an equidigital number, since it uses as much as digits as its factorization.

312141214409989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The spelling of 312141214409989 in words is "three hundred twelve trillion, one hundred forty-one billion, two hundred fourteen million, four hundred nine thousand, nine hundred eighty-nine".