12111512273 has 8 divisors (see below), whose sum is σ = 13844253120. Its totient is φ = 10379402640.

The previous prime is 12111512251. The next prime is 12111512279. The reversal of 12111512273 is 37221511121.

It is a happy number.

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 12111512273 - 2¹⁴ = 12111495889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111512279) 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, 115943 + ... + 194076.

It is an arithmetic number, because the mean of its divisors is an integer number (1730531640).

Almost surely, 2^12111512273 is an apocalyptic number.

It is an amenable number.

12111512273 is a deficient number, since it is larger than the sum of its proper divisors (1732740847).

12111512273 is an equidigital number, since it uses as much as digits as its factorization.

12111512273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315607.

The product of its digits is 840, while the sum is 26.

The spelling of 12111512273 in words is "twelve billion, one hundred eleven million, five hundred twelve thousand, two hundred seventy-three".