1155335323 has 4 divisors (see below), whose sum is σ = 1186560640. Its totient is φ = 1124110008.

The previous prime is 1155335297. The next prime is 1155335371. The reversal of 1155335323 is 3235335511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3235335511 = 24097 ⋅134263.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155335323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155332323) 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, 15612603 + ... + 15612676.

It is an arithmetic number, because the mean of its divisors is an integer number (296640160).

Almost surely, 2^1155335323 is an apocalyptic number.

1155335323 is a deficient number, since it is larger than the sum of its proper divisors (31225317).

1155335323 is an equidigital number, since it uses as much as digits as its factorization.

1155335323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31225316.

The product of its digits is 20250, while the sum is 31.

The square root of 1155335323 is about 33990.2239327722. The cubic root of 1155335323 is about 1049.3072749049.

The spelling of 1155335323 in words is "one billion, one hundred fifty-five million, three hundred thirty-five thousand, three hundred twenty-three".