1120311131 has 4 divisors (see below), whose sum is σ = 1120600200. Its totient is φ = 1120022064.

The previous prime is 1120311113. The next prime is 1120311133. The reversal of 1120311131 is 1311130211.

It is a happy number.

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 1120311131 - 2¹⁸ = 1120048987 is a prime.

It is a super-2 number, since 2×1120311131² = 2510194060484998322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120311133) 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, 138641 + ... + 146498.

It is an arithmetic number, because the mean of its divisors is an integer number (280150050).

Almost surely, 2^1120311131 is an apocalyptic number.

1120311131 is a deficient number, since it is larger than the sum of its proper divisors (289069).

1120311131 is an equidigital number, since it uses as much as digits as its factorization.

1120311131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289068.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1120311131 is about 33471.0491469867. The cubic root of 1120311131 is about 1038.5949749124.

Adding to 1120311131 its reverse (1311130211), we get a palindrome (2431441342).

The spelling of 1120311131 in words is "one billion, one hundred twenty million, three hundred eleven thousand, one hundred thirty-one".