1201311113099 has 4 divisors (see below), whose sum is σ = 1226870924064. Its totient is φ = 1175751302136.

The previous prime is 1201311113087. The next prime is 1201311113111. The reversal of 1201311113099 is 9903111131021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1201311113087) and next prime (1201311113111).

It is a cyclic number.

It is not a de Polignac number, because 1201311113099 - 2¹² = 1201311109003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201311116099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12779905412 + ... + 12779905505.

It is an arithmetic number, because the mean of its divisors is an integer number (306717731016).

Almost surely, 2^{1201311113099} is an apocalyptic number.

1201311113099 is a deficient number, since it is larger than the sum of its proper divisors (25559810965).

1201311113099 is an equidigital number, since it uses as much as digits as its factorization.

1201311113099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25559810964.

The product of its (nonzero) digits is 1458, while the sum is 32.

The spelling of 1201311113099 in words is "one trillion, two hundred one billion, three hundred eleven million, one hundred thirteen thousand, ninety-nine".