2312311443 has 16 divisors (see below), whose sum is σ = 3321314976. Its totient is φ = 1422501120.

The previous prime is 2312311387. The next prime is 2312311447. The reversal of 2312311443 is 3441132132.

It is a happy number.

It is not a de Polignac number, because 2312311443 - 2¹⁴ = 2312295059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2312311447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143721 + ... + 158997.

It is an arithmetic number, because the mean of its divisors is an integer number (207582186).

Almost surely, 2^2312311443 is an apocalyptic number.

2312311443 is a deficient number, since it is larger than the sum of its proper divisors (1009003533).

2312311443 is a wasteful number, since it uses less digits than its factorization.

2312311443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19174.

The product of its digits is 1728, while the sum is 24.

The square root of 2312311443 is about 48086.4995918813. The cubic root of 2312311443 is about 1322.3571753618.

Adding to 2312311443 its reverse (3441132132), we get a palindrome (5753443575).

It can be divided in two parts, 231231 and 1443, that multiplied together give a palindrome (333666333).

The spelling of 2312311443 in words is "two billion, three hundred twelve million, three hundred eleven thousand, four hundred forty-three".