11137421471 has 16 divisors (see below), whose sum is σ = 12236703648. Its totient is φ = 10052812800.

The previous prime is 11137421453. The next prime is 11137421479. The reversal of 11137421471 is 17412473111.

It is a cyclic number.

It is not a de Polignac number, because 11137421471 - 2¹⁰ = 11137420447 is a prime.

It is a super-3 number, since 3×11137421471³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11137421479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143695 + ... + 1153391.

It is an arithmetic number, because the mean of its divisors is an integer number (764793978).

Almost surely, 2^11137421471 is an apocalyptic number.

11137421471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11137421471 is a deficient number, since it is larger than the sum of its proper divisors (1099282177).

11137421471 is a wasteful number, since it uses less digits than its factorization.

11137421471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10442.

The product of its digits is 4704, while the sum is 32.

Adding to 11137421471 its reverse (17412473111), we get a palindrome (28549894582).

The spelling of 11137421471 in words is "eleven billion, one hundred thirty-seven million, four hundred twenty-one thousand, four hundred seventy-one".