1133143131 has 4 divisors (see below), whose sum is σ = 1510857512. Its totient is φ = 755428752.

The previous prime is 1133143103. The next prime is 1133143133. The reversal of 1133143131 is 1313413311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1133143131 - 2⁷ = 1133143003 is a prime.

It is a super-2 number, since 2×1133143131² = 2568026710664966322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1133143098 and 1133143107.

It is not an unprimeable number, because it can be changed into a prime (1133143133) 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, 188857186 + ... + 188857191.

It is an arithmetic number, because the mean of its divisors is an integer number (377714378).

Almost surely, 2^1133143131 is an apocalyptic number.

1133143131 is a deficient number, since it is larger than the sum of its proper divisors (377714381).

1133143131 is an equidigital number, since it uses as much as digits as its factorization.

1133143131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377714380.

The product of its digits is 324, while the sum is 21.

The square root of 1133143131 is about 33662.1914170780. The cubic root of 1133143131 is about 1042.5452730082.

Adding to 1133143131 its reverse (1313413311), we get a palindrome (2446556442).

The spelling of 1133143131 in words is "one billion, one hundred thirty-three million, one hundred forty-three thousand, one hundred thirty-one".