1012311233 has 2 divisors, whose sum is σ = 1012311234. Its totient is φ = 1012311232.

The previous prime is 1012311229. The next prime is 1012311263. The reversal of 1012311233 is 3321132101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 943288369 + 69022864 = 30713^2 + 8308^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012311233 - 2² = 1012311229 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012311263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506155616 + 506155617.

It is an arithmetic number, because the mean of its divisors is an integer number (506155617).

Almost surely, 2^1012311233 is an apocalyptic number.

It is an amenable number.

1012311233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012311233 is an equidigital number, since it uses as much as digits as its factorization.

1012311233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1012311233 is about 31816.8388278911. The cubic root of 1012311233 is about 1004.0870178622.

Adding to 1012311233 its reverse (3321132101), we get a palindrome (4333443334).

The spelling of 1012311233 in words is "one billion, twelve million, three hundred eleven thousand, two hundred thirty-three".