1236234023 has 4 divisors (see below), whose sum is σ = 1247787720. Its totient is φ = 1224680328.

The previous prime is 1236234017. The next prime is 1236234053. The reversal of 1236234023 is 3204326321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3204326321 = 7 ⋅457760903.

It is a cyclic number.

It is not a de Polignac number, because 1236234023 - 2⁶ = 1236233959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1236233983 and 1236234001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1236234053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5776688 + ... + 5776901.

It is an arithmetic number, because the mean of its divisors is an integer number (311946930).

Almost surely, 2^1236234023 is an apocalyptic number.

1236234023 is a deficient number, since it is larger than the sum of its proper divisors (11553697).

1236234023 is a wasteful number, since it uses less digits than its factorization.

1236234023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11553696.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 1236234023 is about 35160.1197807971. The cubic root of 1236234023 is about 1073.2483528281.

The spelling of 1236234023 in words is "one billion, two hundred thirty-six million, two hundred thirty-four thousand, twenty-three".