1231044133 has 8 divisors (see below), whose sum is σ = 1343222496. Its totient is φ = 1118910000.

The previous prime is 1231044107. The next prime is 1231044149. The reversal of 1231044133 is 3314401321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231044133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231044733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79258 + ... + 93508.

It is an arithmetic number, because the mean of its divisors is an integer number (167902812).

Almost surely, 2^1231044133 is an apocalyptic number.

It is an amenable number.

1231044133 is a deficient number, since it is larger than the sum of its proper divisors (112178363).

1231044133 is a wasteful number, since it uses less digits than its factorization.

1231044133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22115.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1231044133 is about 35086.2385131265. The cubic root of 1231044133 is about 1071.7443620426.

Adding to 1231044133 its reverse (3314401321), we get a palindrome (4545445454).

The spelling of 1231044133 in words is "one billion, two hundred thirty-one million, forty-four thousand, one hundred thirty-three".