2311212404 has 24 divisors (see below), whose sum is σ = 4173294720. Its totient is φ = 1119350016.

The previous prime is 2311212403. The next prime is 2311212443. The reversal of 2311212404 is 4042121132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311212401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45134 + ... + 81605.

It is an arithmetic number, because the mean of its divisors is an integer number (173887280).

Almost surely, 2^2311212404 is an apocalyptic number.

It is an amenable number.

2311212404 is a deficient number, since it is larger than the sum of its proper divisors (1862082316).

2311212404 is a wasteful number, since it uses less digits than its factorization.

2311212404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126887 (or 126885 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2311212404 is about 48075.0705043685. The cubic root of 2311212404 is about 1322.1476372065.

Adding to 2311212404 its reverse (4042121132), we get a palindrome (6353333536).

The spelling of 2311212404 in words is "two billion, three hundred eleven million, two hundred twelve thousand, four hundred four".