1131240022 has 16 divisors (see below), whose sum is σ = 1858809744. Its totient is φ = 512064000.

The previous prime is 1131240017. The next prime is 1131240037. The reversal of 1131240022 is 2200421311.

It is a junction number, because it is equal to n+sod(n) for n = 1131239978 and 1131240005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101379 + ... + 111982.

It is an arithmetic number, because the mean of its divisors is an integer number (116175609).

Almost surely, 2^1131240022 is an apocalyptic number.

1131240022 is a deficient number, since it is larger than the sum of its proper divisors (727569722).

1131240022 is a wasteful number, since it uses less digits than its factorization.

1131240022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213615.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1131240022 is about 33633.9117855774. The cubic root of 1131240022 is about 1041.9612958609.

Adding to 1131240022 its reverse (2200421311), we get a palindrome (3331661333).

The spelling of 1131240022 in words is "one billion, one hundred thirty-one million, two hundred forty thousand, twenty-two".