1133123031 has 12 divisors (see below), whose sum is σ = 1637452752. Its totient is φ = 755083296.

The previous prime is 1133123021. The next prime is 1133123051. The reversal of 1133123031 is 1303213311.

It is a happy number.

It is not a de Polignac number, because 1133123031 - 2⁵ = 1133122999 is a prime.

It is a super-2 number, since 2×1133123031² = 2567935606765253922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1133122995 and 1133123013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133123011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5091 + ... + 47876.

It is an arithmetic number, because the mean of its divisors is an integer number (136454396).

Almost surely, 2^1133123031 is an apocalyptic number.

1133123031 is a deficient number, since it is larger than the sum of its proper divisors (504329721).

1133123031 is a wasteful number, since it uses less digits than its factorization.

1133123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55350 (or 55347 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1133123031 is about 33661.8928612162. The cubic root of 1133123031 is about 1042.5391086548.

Adding to 1133123031 its reverse (1303213311), we get a palindrome (2436336342).

The spelling of 1133123031 in words is "one billion, one hundred thirty-three million, one hundred twenty-three thousand, thirty-one".