612303311 has 2 divisors, whose sum is σ = 612303312. Its totient is φ = 612303310.

The previous prime is 612303283. The next prime is 612303313. The reversal of 612303311 is 113303216.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 612303311 - 2¹⁰ = 612302287 is a prime.

Together with 612303313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612303313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306151655 + 306151656.

It is an arithmetic number, because the mean of its divisors is an integer number (306151656).

Almost surely, 2^612303311 is an apocalyptic number.

612303311 is a deficient number, since it is larger than the sum of its proper divisors (1).

612303311 is an equidigital number, since it uses as much as digits as its factorization.

612303311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 612303311 is about 24744.7633045863. The cubic root of 612303311 is about 849.1587113220.

Adding to 612303311 its reverse (113303216), we get a palindrome (725606527).

The spelling of 612303311 in words is "six hundred twelve million, three hundred three thousand, three hundred eleven".