123340542344 has 16 divisors (see below), whose sum is σ = 235054723020. Its totient is φ = 60659282880.

The previous prime is 123340542293. The next prime is 123340542359. The reversal of 123340542344 is 443245043321.

It can be written as a sum of positive squares in 2 ways, for example, as 83873952100 + 39466590244 = 289610^2 + 198662^2 .

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 3 ways as a sum of consecutive naturals, for example, 126373019 + ... + 126373994.

Almost surely, 2^123340542344 is an apocalyptic number.

It is an amenable number.

123340542344 is a deficient number, since it is larger than the sum of its proper divisors (111714180676).

123340542344 is a wasteful number, since it uses less digits than its factorization.

123340542344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252747080 (or 252747076 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 123340542344 its reverse (443245043321), we get a palindrome (566585585665).

The spelling of 123340542344 in words is "one hundred twenty-three billion, three hundred forty million, five hundred forty-two thousand, three hundred forty-four".