1131110121 has 16 divisors (see below), whose sum is σ = 1515110400. Its totient is φ = 750601488.

The previous prime is 1131110083. The next prime is 1131110179. The reversal of 1131110121 is 1210111311.

It is a de Polignac number, because none of the positive numbers 2^k-1131110121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131110097 and 1131110106.

It is not an unprimeable number, because it can be changed into a prime (1131110221) 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, 785320 + ... + 786758.

It is an arithmetic number, because the mean of its divisors is an integer number (94694400).

Almost surely, 2^1131110121 is an apocalyptic number.

It is an amenable number.

1131110121 is a deficient number, since it is larger than the sum of its proper divisors (384000279).

1131110121 is a wasteful number, since it uses less digits than its factorization.

1131110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468.

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 1131110121 is about 33631.9806285625. The cubic root of 1131110121 is about 1041.9214113115.

Adding to 1131110121 its reverse (1210111311), we get a palindrome (2341221432).

The spelling of 1131110121 in words is "one billion, one hundred thirty-one million, one hundred ten thousand, one hundred twenty-one".