1012311433 has 6 divisors (see below), whose sum is σ = 1177586826. Its totient is φ = 867695472.

The previous prime is 1012311413. The next prime is 1012311463. The reversal of 1012311433 is 3341132101.

1012311433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 859838329 + 152473104 = 29323^2 + 12348^2 .

It is not a de Polignac number, because 1012311433 - 2²¹ = 1010214281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012311433.

It is not an unprimeable number, because it can be changed into a prime (1012311413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10329660 + ... + 10329757.

It is an arithmetic number, because the mean of its divisors is an integer number (196264471).

Almost surely, 2^1012311433 is an apocalyptic number.

It is an amenable number.

1012311433 is a deficient number, since it is larger than the sum of its proper divisors (165275393).

1012311433 is an equidigital number, since it uses as much as digits as its factorization.

1012311433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20659431 (or 20659424 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1012311433 is about 31816.8419708808. The cubic root of 1012311433 is about 1004.0870839872.

Adding to 1012311433 its reverse (3341132101), we get a palindrome (4353443534).

It can be divided in two parts, 1012 and 311433, that added together give a triangular number (312445 = T₇₉₀).

The spelling of 1012311433 in words is "one billion, twelve million, three hundred eleven thousand, four hundred thirty-three".