12121983 has 12 divisors (see below), whose sum is σ = 17541160. Its totient is φ = 8066736.

The previous prime is 12121979. The next prime is 12121987. The reversal of 12121983 is 38912121.

12121983 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12121979) and next prime (12121987).

It is not a de Polignac number, because 12121983 - 2² = 12121979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121987) 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, 6888 + ... + 8466.

Almost surely, 2^12121983 is an apocalyptic number.

12121983 is a deficient number, since it is larger than the sum of its proper divisors (5419177).

12121983 is a wasteful number, since it uses less digits than its factorization.

12121983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438 (or 2435 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 12121983 is about 3481.6638263911. The cubic root of 12121983 is about 229.7159884420.

It can be divided in two parts, 1212198 and 3, that added together give a square (1212201 = 1101²).

The spelling of 12121983 in words is "twelve million, one hundred twenty-one thousand, nine hundred eighty-three".