611310313 has 4 divisors (see below), whose sum is σ = 643484560. Its totient is φ = 579136068.

The previous prime is 611310311. The next prime is 611310331. The reversal of 611310313 is 313013116.

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 611310313 - 2¹ = 611310311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 32174227 = 611310313 / (6 + 1 + 1 + 3 + 1 + 0 + 3 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611310311) 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, 16087095 + ... + 16087132.

It is an arithmetic number, because the mean of its divisors is an integer number (160871140).

Almost surely, 2^611310313 is an apocalyptic number.

It is an amenable number.

611310313 is a deficient number, since it is larger than the sum of its proper divisors (32174247).

611310313 is a wasteful number, since it uses less digits than its factorization.

611310313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32174246.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 611310313 is about 24724.6903519539. The cubic root of 611310313 is about 848.6994241667.

Adding to 611310313 its reverse (313013116), we get a palindrome (924323429).

It can be divided in two parts, 6113103 and 13, that added together give a palindrome (6113116).

The spelling of 611310313 in words is "six hundred eleven million, three hundred ten thousand, three hundred thirteen".