12108389293 has 96 divisors (see below), whose sum is σ = 17808465920. Its totient is φ = 7980508800.

The previous prime is 12108389291. The next prime is 12108389299. The reversal of 12108389293 is 39298380121.

It is not a de Polignac number, because 12108389293 - 2¹ = 12108389291 is a prime.

It is a super-2 number, since 2×12108389293² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12108389291) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6484546 + ... + 6486412.

Almost surely, 2^12108389293 is an apocalyptic number.

12108389293 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12108389293 is a deficient number, since it is larger than the sum of its proper divisors (5700076627).

12108389293 is a wasteful number, since it uses less digits than its factorization.

12108389293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959 (or 1948 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 12108389293 in words is "twelve billion, one hundred eight million, three hundred eighty-nine thousand, two hundred ninety-three".