11161160401231 has 4 divisors (see below), whose sum is σ = 11164513111200. Its totient is φ = 11157807691264.

The previous prime is 11161160401201. The next prime is 11161160401297. The reversal of 11161160401231 is 13210406116111.

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 11161160401231 - 2⁵ = 11161160401199 is a prime.

It is a super-2 number, since 2×11161160401231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11161160401231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11161160401201) 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, 1676349991 + ... + 1676356648.

It is an arithmetic number, because the mean of its divisors is an integer number (2791128277800).

Almost surely, 2^{11161160401231} is an apocalyptic number.

11161160401231 is a deficient number, since it is larger than the sum of its proper divisors (3352709969).

11161160401231 is an equidigital number, since it uses as much as digits as its factorization.

11161160401231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352709968.

The product of its (nonzero) digits is 864, while the sum is 28.

Adding to 11161160401231 its reverse (13210406116111), we get a palindrome (24371566517342).

The spelling of 11161160401231 in words is "eleven trillion, one hundred sixty-one billion, one hundred sixty million, four hundred one thousand, two hundred thirty-one".