123339844690 has 8 divisors (see below), whose sum is σ = 222011720460. Its totient is φ = 49335937872.

The previous prime is 123339844651. The next prime is 123339844709. The reversal of 123339844690 is 96448933321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111781229569 + 11558615121 = 334337^2 + 107511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×123339844690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6166992225 + ... + 6166992244.

Almost surely, 2^123339844690 is an apocalyptic number.

123339844690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123339844690 is a deficient number, since it is larger than the sum of its proper divisors (98671875770).

123339844690 is a wasteful number, since it uses less digits than its factorization.

123339844690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12333984476.

The product of its (nonzero) digits is 3359232, while the sum is 52.

The spelling of 123339844690 in words is "one hundred twenty-three billion, three hundred thirty-nine million, eight hundred forty-four thousand, six hundred ninety".