1000200120979 has 2 divisors, whose sum is σ = 1000200120980. Its totient is φ = 1000200120978.

The previous prime is 1000200120973. The next prime is 1000200121051. The reversal of 1000200120979 is 9790210020001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000200120979 - 2²⁷ = 1000065903251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000200120979.

It is not a weakly prime, because it can be changed into another prime (1000200120973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500100060489 + 500100060490.

It is an arithmetic number, because the mean of its divisors is an integer number (500100060490).

Almost surely, 2^{1000200120979} is an apocalyptic number.

1000200120979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000200120979 is an equidigital number, since it uses as much as digits as its factorization.

1000200120979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 31.

The spelling of 1000200120979 in words is "one trillion, two hundred million, one hundred twenty thousand, nine hundred seventy-nine".