123440033313 has 12 divisors (see below), whose sum is σ = 178311569748. Its totient is φ = 82289063520.

The previous prime is 123440033281. The next prime is 123440033347. The reversal of 123440033313 is 313330044321.

123440033313 is a `hidden beast` number, since 1 + 2 + 344 + 0 + 0 + 3 + 3 + 313 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11702263329 + 111737769984 = 108177^2 + 334272^2 .

It is not a de Polignac number, because 123440033313 - 2⁵ = 123440033281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123440033413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170358 + ... + 525263.

It is an arithmetic number, because the mean of its divisors is an integer number (14859297479).

Almost surely, 2^123440033313 is an apocalyptic number.

It is an amenable number.

123440033313 is a deficient number, since it is larger than the sum of its proper divisors (54871536435).

123440033313 is a wasteful number, since it uses less digits than its factorization.

123440033313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715344 (or 715341 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 123440033313 its reverse (313330044321), we get a palindrome (436770077634).

The spelling of 123440033313 in words is "one hundred twenty-three billion, four hundred forty million, thirty-three thousand, three hundred thirteen".