1131313270 has 16 divisors (see below), whose sum is σ = 2036778048. Its totient is φ = 452433280.

The previous prime is 1131313237. The next prime is 1131313283. The reversal of 1131313270 is 723131311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63267 + ... + 79153.

It is an arithmetic number, because the mean of its divisors is an integer number (127298628).

Almost surely, 2^1131313270 is an apocalyptic number.

1131313270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131313270 is a deficient number, since it is larger than the sum of its proper divisors (905464778).

1131313270 is a wasteful number, since it uses less digits than its factorization.

1131313270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23015.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 1131313270 is about 33635.0006689460. Note that the first 3 decimals coincide. The cubic root of 1131313270 is about 1041.9837844375.

Adding to 1131313270 its reverse (723131311), we get a palindrome (1854444581).

The spelling of 1131313270 in words is "one billion, one hundred thirty-one million, three hundred thirteen thousand, two hundred seventy".