1012299999961 has 2 divisors, whose sum is σ = 1012299999962. Its totient is φ = 1012299999960.

The previous prime is 1012299999929. The next prime is 1012300000039. The reversal of 1012299999961 is 1699999922101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 542432250000 + 469867749961 = 736500^2 + 685469^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012299999961 - 2⁵ = 1012299999929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012299999901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506149999980 + 506149999981.

It is an arithmetic number, because the mean of its divisors is an integer number (506149999981).

Almost surely, 2^{1012299999961} is an apocalyptic number.

It is an amenable number.

1012299999961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012299999961 is an equidigital number, since it uses as much as digits as its factorization.

1012299999961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12754584, while the sum is 67.

The spelling of 1012299999961 in words is "one trillion, twelve billion, two hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred sixty-one".