10201399979 has 2 divisors, whose sum is σ = 10201399980. Its totient is φ = 10201399978.

The previous prime is 10201399969. The next prime is 10201399987. The reversal of 10201399979 is 97999310201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10201399979 is a prime.

It is not a weakly prime, because it can be changed into another prime (10201399969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100699989 + 5100699990.

It is an arithmetic number, because the mean of its divisors is an integer number (5100699990).

Almost surely, 2^10201399979 is an apocalyptic number.

10201399979 is a deficient number, since it is larger than the sum of its proper divisors (1).

10201399979 is an equidigital number, since it uses as much as digits as its factorization.

10201399979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 275562, while the sum is 50.

The spelling of 10201399979 in words is "ten billion, two hundred one million, three hundred ninety-nine thousand, nine hundred seventy-nine".