11134421440 has 56 divisors (see below), whose sum is σ = 27666635040. Its totient is φ = 4260123648.

The previous prime is 11134421351. The next prime is 11134421471. The reversal of 11134421440 is 4412443111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749055 + ... + 763774.

Almost surely, 2^11134421440 is an apocalyptic number.

11134421440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11134421440 is an abundant number, since it is smaller than the sum of its proper divisors (16532213600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11134421440 is a wasteful number, since it uses less digits than its factorization.

11134421440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512869 (or 1512859 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 11134421440 its reverse (4412443111), we get a palindrome (15546864551).

The spelling of 11134421440 in words is "eleven billion, one hundred thirty-four million, four hundred twenty-one thousand, four hundred forty".