2311433340 has 24 divisors (see below), whose sum is σ = 6472013520. Its totient is φ = 616382208.

The previous prime is 2311433317. The next prime is 2311433381. The reversal of 2311433340 is 433341132.

2311433340 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2311433340.

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, 19261885 + ... + 19262004.

It is an arithmetic number, because the mean of its divisors is an integer number (269667230).

Almost surely, 2^2311433340 is an apocalyptic number.

2311433340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311433340 is an abundant number, since it is smaller than the sum of its proper divisors (4160580180).

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

2311433340 is a wasteful number, since it uses less digits than its factorization.

2311433340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38523901 (or 38523899 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 2311433340 is about 48077.3682724003. The cubic root of 2311433340 is about 1322.1897652692.

Adding to 2311433340 its reverse (433341132), we get a palindrome (2744774472).

The spelling of 2311433340 in words is "two billion, three hundred eleven million, four hundred thirty-three thousand, three hundred forty".