2311143064 has 32 divisors (see below), whose sum is σ = 4591382400. Its totient is φ = 1086865920.

The previous prime is 2311143053. The next prime is 2311143073. The reversal of 2311143064 is 4603411132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234394 + ... + 244054.

It is an arithmetic number, because the mean of its divisors is an integer number (143480700).

Almost surely, 2^2311143064 is an apocalyptic number.

It is an amenable number.

2311143064 is a deficient number, since it is larger than the sum of its proper divisors (2280239336).

2311143064 is a wasteful number, since it uses less digits than its factorization.

2311143064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11443 (or 11439 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2311143064 is about 48074.3493351704. The cubic root of 2311143064 is about 1322.1344149061.

Adding to 2311143064 its reverse (4603411132), we get a palindrome (6914554196).

The spelling of 2311143064 in words is "two billion, three hundred eleven million, one hundred forty-three thousand, sixty-four".