2311040412 has 18 divisors (see below), whose sum is σ = 5841796688. Its totient is φ = 770346792.

The previous prime is 2311040371. The next prime is 2311040429. The reversal of 2311040412 is 2140401132.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32097748 + ... + 32097819.

Almost surely, 2^2311040412 is an apocalyptic number.

It is an amenable number.

2311040412 is an abundant number, since it is smaller than the sum of its proper divisors (3530756276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2311040412 is a wasteful number, since it uses less digits than its factorization.

2311040412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64195577 (or 64195572 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2311040412 is about 48073.2816853603. The cubic root of 2311040412 is about 1322.1148399242.

Adding to 2311040412 its reverse (2140401132), we get a palindrome (4451441544).

The spelling of 2311040412 in words is "two billion, three hundred eleven million, forty thousand, four hundred twelve".