12111953 has 8 divisors (see below), whose sum is σ = 13870080. Its totient is φ = 10360800.

The previous prime is 12111929. The next prime is 12111989. The reversal of 12111953 is 35911121.

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

It is a cyclic number.

It is not a de Polignac number, because 12111953 - 2⁶ = 12111889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12111923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2768 + ... + 5646.

It is an arithmetic number, because the mean of its divisors is an integer number (1733760).

Almost surely, 2^12111953 is an apocalyptic number.

It is an amenable number.

12111953 is a deficient number, since it is larger than the sum of its proper divisors (1758127).

12111953 is an equidigital number, since it uses as much as digits as its factorization.

12111953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487.

The product of its digits is 270, while the sum is 23.

The square root of 12111953 is about 3480.2231250309. The cubic root of 12111953 is about 229.6526135763.

The spelling of 12111953 in words is "twelve million, one hundred eleven thousand, nine hundred fifty-three".