1201100119979 has 2 divisors, whose sum is σ = 1201100119980. Its totient is φ = 1201100119978.

The previous prime is 1201100119963. The next prime is 1201100120089. The reversal of 1201100119979 is 9799110011021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201100119979 - 2⁴ = 1201100119963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201100119579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600550059989 + 600550059990.

It is an arithmetic number, because the mean of its divisors is an integer number (600550059990).

Almost surely, 2^{1201100119979} is an apocalyptic number.

1201100119979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201100119979 is an equidigital number, since it uses as much as digits as its factorization.

1201100119979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 41.

The spelling of 1201100119979 in words is "one trillion, two hundred one billion, one hundred million, one hundred nineteen thousand, nine hundred seventy-nine".