1145111113 has 16 divisors (see below), whose sum is σ = 1217082240. Its totient is φ = 1075890816.

The previous prime is 1145111089. The next prime is 1145111131. The reversal of 1145111113 is 3111115411.

It is a cyclic number.

It is not a de Polignac number, because 1145111113 - 2²⁵ = 1111556681 is a prime.

It is a super-2 number, since 2×1145111113² = 2622558922232197538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145111813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137556 + ... + 145642.

It is an arithmetic number, because the mean of its divisors is an integer number (76067640).

Almost surely, 2^1145111113 is an apocalyptic number.

It is an amenable number.

1145111113 is a deficient number, since it is larger than the sum of its proper divisors (71971127).

1145111113 is an equidigital number, since it uses as much as digits as its factorization.

1145111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8256.

The product of its digits is 60, while the sum is 19.

The square root of 1145111113 is about 33839.4904364708. The cubic root of 1145111113 is about 1046.2027962718.

Adding to 1145111113 its reverse (3111115411), we get a palindrome (4256226524).

The spelling of 1145111113 in words is "one billion, one hundred forty-five million, one hundred eleven thousand, one hundred thirteen".