311343045 has 16 divisors (see below), whose sum is σ = 536468352. Its totient is φ = 153276480.

The previous prime is 311343031. The next prime is 311343077. The reversal of 311343045 is 540343113.

It is a happy number.

It is not a de Polignac number, because 311343045 - 2⁹ = 311342533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 798121 + ... + 798510.

It is an arithmetic number, because the mean of its divisors is an integer number (33529272).

Almost surely, 2^311343045 is an apocalyptic number.

It is an amenable number.

311343045 is a deficient number, since it is larger than the sum of its proper divisors (225125307).

311343045 is a wasteful number, since it uses less digits than its factorization.

311343045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596652.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 311343045 is about 17644.9155566129. The cubic root of 311343045 is about 677.7659127836.

Adding to 311343045 its reverse (540343113), we get a palindrome (851686158).

The spelling of 311343045 in words is "three hundred eleven million, three hundred forty-three thousand, forty-five".