1312211030233 has 4 divisors (see below), whose sum is σ = 1313148995200. Its totient is φ = 1311273065268.

The previous prime is 1312211030203. The next prime is 1312211030237. The reversal of 1312211030233 is 3320301122131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1312211030233 - 2²¹ = 1312208933081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312211030237) 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, 468980385 + ... + 468983182.

It is an arithmetic number, because the mean of its divisors is an integer number (328287248800).

Almost surely, 2^{1312211030233} is an apocalyptic number.

It is an amenable number.

1312211030233 is a deficient number, since it is larger than the sum of its proper divisors (937964967).

1312211030233 is an equidigital number, since it uses as much as digits as its factorization.

1312211030233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937964966.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1312211030233 its reverse (3320301122131), we get a palindrome (4632512152364).

The spelling of 1312211030233 in words is "one trillion, three hundred twelve billion, two hundred eleven million, thirty thousand, two hundred thirty-three".