1156111107 has 16 divisors (see below), whose sum is σ = 1632341760. Its totient is φ = 725797152.

The previous prime is 1156111097. The next prime is 1156111111. The reversal of 1156111107 is 7011116511.

It is not a de Polignac number, because 1156111107 - 2⁴ = 1156111091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1156111807) 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, 51208 + ... + 70245.

It is an arithmetic number, because the mean of its divisors is an integer number (102021360).

Almost surely, 2^1156111107 is an apocalyptic number.

1156111107 is a deficient number, since it is larger than the sum of its proper divisors (476230653).

1156111107 is a wasteful number, since it uses less digits than its factorization.

1156111107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121642.

The product of its (nonzero) digits is 210, while the sum is 24.

The square root of 1156111107 is about 34001.6338872119. The cubic root of 1156111107 is about 1049.5420851353.

Adding to 1156111107 its reverse (7011116511), we get a palindrome (8167227618).

The spelling of 1156111107 in words is "one billion, one hundred fifty-six million, one hundred eleven thousand, one hundred seven".