12123465770 has 16 divisors (see below), whose sum is σ = 23500872360. Its totient is φ = 4476356544.

The previous prime is 12123465763. The next prime is 12123465791. The reversal of 12123465770 is 7756432121.

It can be written as a sum of positive squares in 4 ways, for example, as 5381249449 + 6742216321 = 73357^2 + 82111^2 .

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, 46628585 + ... + 46628844.

Almost surely, 2^12123465770 is an apocalyptic number.

12123465770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123465770 is a deficient number, since it is larger than the sum of its proper divisors (11377406590).

12123465770 is a wasteful number, since it uses less digits than its factorization.

12123465770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93257449.

The product of its (nonzero) digits is 70560, while the sum is 38.

Adding to 12123465770 its reverse (7756432121), we get a palindrome (19879897891).

The spelling of 12123465770 in words is "twelve billion, one hundred twenty-three million, four hundred sixty-five thousand, seven hundred seventy".