11601112291 has 4 divisors (see below), whose sum is σ = 11651772400. Its totient is φ = 11550452184.

The previous prime is 11601112277. The next prime is 11601112333. The reversal of 11601112291 is 19221110611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19221110611 = 457 ⋅42059323.

It is a cyclic number.

It is not a de Polignac number, because 11601112291 - 2¹⁹ = 11600588003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11601110291) 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, 25329711 + ... + 25330168.

It is an arithmetic number, because the mean of its divisors is an integer number (2912943100).

Almost surely, 2^11601112291 is an apocalyptic number.

11601112291 is a deficient number, since it is larger than the sum of its proper divisors (50660109).

11601112291 is an equidigital number, since it uses as much as digits as its factorization.

11601112291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50660108.

The product of its (nonzero) digits is 216, while the sum is 25.

The spelling of 11601112291 in words is "eleven billion, six hundred one million, one hundred twelve thousand, two hundred ninety-one".