1133055431 has 4 divisors (see below), whose sum is σ = 1133494992. Its totient is φ = 1132615872.

The previous prime is 1133055409. The next prime is 1133055437. The reversal of 1133055431 is 1345503311.

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 1133055431 - 2²² = 1128861127 is a prime.

It is a super-2 number, since 2×1133055431² = 2567629219437191522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1133055431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133055437) 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, 215891 + ... + 221076.

It is an arithmetic number, because the mean of its divisors is an integer number (283373748).

Almost surely, 2^1133055431 is an apocalyptic number.

1133055431 is a deficient number, since it is larger than the sum of its proper divisors (439561).

1133055431 is an equidigital number, since it uses as much as digits as its factorization.

1133055431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439560.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1133055431 is about 33660.8887434661. Note that the first 3 decimals coincide. The cubic root of 1133055431 is about 1042.5183762650.

Adding to 1133055431 its reverse (1345503311), we get a palindrome (2478558742).

The spelling of 1133055431 in words is "one billion, one hundred thirty-three million, fifty-five thousand, four hundred thirty-one".