1156423323 has 16 divisors (see below), whose sum is σ = 1683069696. Its totient is φ = 700446240.

The previous prime is 1156423253. The next prime is 1156423339. The reversal of 1156423323 is 3233246511.

It is not a de Polignac number, because 1156423323 - 2¹⁴ = 1156406939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1156423823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51465 + ... + 70437.

It is an arithmetic number, because the mean of its divisors is an integer number (105191856).

Almost surely, 2^1156423323 is an apocalyptic number.

1156423323 is a deficient number, since it is larger than the sum of its proper divisors (526646373).

1156423323 is a wasteful number, since it uses less digits than its factorization.

1156423323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20834.

The product of its digits is 12960, while the sum is 30.

The square root of 1156423323 is about 34006.2247684156. The cubic root of 1156423323 is about 1049.6365553918.

Adding to 1156423323 its reverse (3233246511), we get a palindrome (4389669834).

The spelling of 1156423323 in words is "one billion, one hundred fifty-six million, four hundred twenty-three thousand, three hundred twenty-three".