1320031233 has 6 divisors (see below), whose sum is σ = 1906711794. Its totient is φ = 880020816.

The previous prime is 1320031231. The next prime is 1320031241. The reversal of 1320031233 is 3321300231.

1320031233 is a `hidden beast` number, since 1 + 320 + 0 + 312 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 851005584 + 469025649 = 29172^2 + 21657^2 .

It is not a de Polignac number, because 1320031233 - 2¹ = 1320031231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320031231) 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, 73335060 + ... + 73335077.

It is an arithmetic number, because the mean of its divisors is an integer number (317785299).

Almost surely, 2^1320031233 is an apocalyptic number.

It is an amenable number.

1320031233 is a deficient number, since it is larger than the sum of its proper divisors (586680561).

1320031233 is a wasteful number, since it uses less digits than its factorization.

1320031233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146670143 (or 146670140 counting only the distinct ones).

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

The square root of 1320031233 is about 36332.2340766433. The cubic root of 1320031233 is about 1096.9699622851.

Adding to 1320031233 its reverse (3321300231), we get a palindrome (4641331464).

The spelling of 1320031233 in words is "one billion, three hundred twenty million, thirty-one thousand, two hundred thirty-three".