1312100121179 has 2 divisors, whose sum is σ = 1312100121180. Its totient is φ = 1312100121178.

The previous prime is 1312100121133. The next prime is 1312100121239. The reversal of 1312100121179 is 9711210012131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312100121179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312100121979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656050060589 + 656050060590.

It is an arithmetic number, because the mean of its divisors is an integer number (656050060590).

Almost surely, 2^{1312100121179} is an apocalyptic number.

1312100121179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312100121179 is an equidigital number, since it uses as much as digits as its factorization.

1312100121179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 29.

The spelling of 1312100121179 in words is "one trillion, three hundred twelve billion, one hundred million, one hundred twenty-one thousand, one hundred seventy-nine".