11124131451 has 4 divisors (see below), whose sum is σ = 14832175272. Its totient is φ = 7416087632.

The previous prime is 11124131413. The next prime is 11124131453. The reversal of 11124131451 is 15413142111.

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 11124131451 - 2⁶ = 11124131387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11124131453) 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, 1854021906 + ... + 1854021911.

It is an arithmetic number, because the mean of its divisors is an integer number (3708043818).

Almost surely, 2^11124131451 is an apocalyptic number.

11124131451 is a deficient number, since it is larger than the sum of its proper divisors (3708043821).

11124131451 is an equidigital number, since it uses as much as digits as its factorization.

11124131451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708043820.

The product of its digits is 480, while the sum is 24.

Adding to 11124131451 its reverse (15413142111), we get a palindrome (26537273562).

The spelling of 11124131451 in words is "eleven billion, one hundred twenty-four million, one hundred thirty-one thousand, four hundred fifty-one".