11131225454 has 4 divisors (see below), whose sum is σ = 16696838184. Its totient is φ = 5565612726.

The previous prime is 11131225421. The next prime is 11131225463. The reversal of 11131225454 is 45452213111.

It is a happy number.

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

It is a super-2 number, since 2×11131225454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2782806362 + ... + 2782806365.

It is an arithmetic number, because the mean of its divisors is an integer number (4174209546).

Almost surely, 2^11131225454 is an apocalyptic number.

11131225454 is a deficient number, since it is larger than the sum of its proper divisors (5565612730).

11131225454 is an equidigital number, since it uses as much as digits as its factorization.

11131225454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5565612729.

The product of its digits is 4800, while the sum is 29.

Adding to 11131225454 its reverse (45452213111), we get a palindrome (56583438565).

The spelling of 11131225454 in words is "eleven billion, one hundred thirty-one million, two hundred twenty-five thousand, four hundred fifty-four".