1310121233 has 2 divisors, whose sum is σ = 1310121234. Its totient is φ = 1310121232.

The previous prime is 1310121229. The next prime is 1310121247. The reversal of 1310121233 is 3321210131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 851647489 + 458473744 = 29183^2 + 21412^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310121233 - 2² = 1310121229 is a prime.

It is not a weakly prime, because it can be changed into another prime (1310121203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655060616 + 655060617.

It is an arithmetic number, because the mean of its divisors is an integer number (655060617).

Almost surely, 2^1310121233 is an apocalyptic number.

It is an amenable number.

1310121233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310121233 is an equidigital number, since it uses as much as digits as its factorization.

1310121233 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1310121233 is about 36195.5968731005. The cubic root of 1310121233 is about 1094.2179338162.

Adding to 1310121233 its reverse (3321210131), we get a palindrome (4631331364).

The spelling of 1310121233 in words is "one billion, three hundred ten million, one hundred twenty-one thousand, two hundred thirty-three".