201321100979 has 2 divisors, whose sum is σ = 201321100980. Its totient is φ = 201321100978.

The previous prime is 201321100931. The next prime is 201321100991. The reversal of 201321100979 is 979001123102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201321100979 - 2¹² = 201321096883 is a prime.

It is not a weakly prime, because it can be changed into another prime (201321100579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100660550489 + 100660550490.

It is an arithmetic number, because the mean of its divisors is an integer number (100660550490).

Almost surely, 2^201321100979 is an apocalyptic number.

201321100979 is a deficient number, since it is larger than the sum of its proper divisors (1).

201321100979 is an equidigital number, since it uses as much as digits as its factorization.

201321100979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 35.

The spelling of 201321100979 in words is "two hundred one billion, three hundred twenty-one million, one hundred thousand, nine hundred seventy-nine".