1233311113091 has 4 divisors (see below), whose sum is σ = 1239571575792. Its totient is φ = 1227050650392.

The previous prime is 1233311113081. The next prime is 1233311113169. The reversal of 1233311113091 is 1903111133321.

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

It is a cyclic number.

It is not a de Polignac number, because 1233311113091 - 2³⁴ = 1216131243907 is a prime.

It is a super-2 number, since 2×1233311113091² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1233311113031) 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, 3130231055 + ... + 3130231448.

It is an arithmetic number, because the mean of its divisors is an integer number (309892893948).

Almost surely, 2^{1233311113091} is an apocalyptic number.

1233311113091 is a deficient number, since it is larger than the sum of its proper divisors (6260462701).

1233311113091 is an equidigital number, since it uses as much as digits as its factorization.

1233311113091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6260462700.

The product of its (nonzero) digits is 1458, while the sum is 29.

The spelling of 1233311113091 in words is "one trillion, two hundred thirty-three billion, three hundred eleven million, one hundred thirteen thousand, ninety-one".