12111445151 has 4 divisors (see below), whose sum is σ = 13043094792. Its totient is φ = 11179795512.

The previous prime is 12111445121. The next prime is 12111445187. The reversal of 12111445151 is 15154411121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12111445151 - 2²² = 12107250847 is a prime.

It is a super-3 number, since 3×12111445151³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12111445151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111445121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465824801 + ... + 465824826.

It is an arithmetic number, because the mean of its divisors is an integer number (3260773698).

Almost surely, 2^12111445151 is an apocalyptic number.

12111445151 is a deficient number, since it is larger than the sum of its proper divisors (931649641).

12111445151 is an equidigital number, since it uses as much as digits as its factorization.

12111445151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931649640.

The product of its digits is 800, while the sum is 26.

Adding to 12111445151 its reverse (15154411121), we get a palindrome (27265856272).

The spelling of 12111445151 in words is "twelve billion, one hundred eleven million, four hundred forty-five thousand, one hundred fifty-one".