1230023133 has 6 divisors (see below), whose sum is σ = 1776700094. Its totient is φ = 820015416.

The previous prime is 1230023129. The next prime is 1230023149. The reversal of 1230023133 is 3313200321.

It can be written as a sum of positive squares in only one way, i.e., 1185906969 + 44116164 = 34437^2 + 6642^2 .

It is not a de Polignac number, because 1230023133 - 2² = 1230023129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230023183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68334610 + ... + 68334627.

Almost surely, 2^1230023133 is an apocalyptic number.

It is an amenable number.

1230023133 is a deficient number, since it is larger than the sum of its proper divisors (546676961).

1230023133 is a wasteful number, since it uses less digits than its factorization.

1230023133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136669243 (or 136669240 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1230023133 is about 35071.6856310044. The cubic root of 1230023133 is about 1071.4479866272.

Adding to 1230023133 its reverse (3313200321), we get a palindrome (4543223454).

The spelling of 1230023133 in words is "one billion, two hundred thirty million, twenty-three thousand, one hundred thirty-three".