12111223611451 has 8 divisors (see below), whose sum is σ = 12400880610800. Its totient is φ = 11821930277472.

The previous prime is 12111223611433. The next prime is 12111223611463. The reversal of 12111223611451 is 15411632211121.

12111223611451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12111223611451 - 2⁵ = 12111223611419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111223611401) 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, 90848940 + ... + 90982153.

It is an arithmetic number, because the mean of its divisors is an integer number (1550110076350).

Almost surely, 2^{12111223611451} is an apocalyptic number.

12111223611451 is a deficient number, since it is larger than the sum of its proper divisors (289656999349).

12111223611451 is a wasteful number, since it uses less digits than its factorization.

12111223611451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181832685.

The product of its digits is 2880, while the sum is 31.

Adding to 12111223611451 its reverse (15411632211121), we get a palindrome (27522855822572).

The spelling of 12111223611451 in words is "twelve trillion, one hundred eleven billion, two hundred twenty-three million, six hundred eleven thousand, four hundred fifty-one".