11110421231 has 16 divisors (see below), whose sum is σ = 13679744064. Its totient is φ = 8787204864.

The previous prime is 11110421219. The next prime is 11110421263. The reversal of 11110421231 is 13212401111.

It is a cyclic number.

It is not a de Polignac number, because 11110421231 - 2¹⁰ = 11110420207 is a prime.

It is a super-2 number, since 2×11110421231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110421131) 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, 222395 + ... + 267731.

It is an arithmetic number, because the mean of its divisors is an integer number (854984004).

Almost surely, 2^11110421231 is an apocalyptic number.

11110421231 is a deficient number, since it is larger than the sum of its proper divisors (2569322833).

11110421231 is a wasteful number, since it uses less digits than its factorization.

11110421231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48050.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11110421231 its reverse (13212401111), we get a palindrome (24322822342).

The spelling of 11110421231 in words is "eleven billion, one hundred ten million, four hundred twenty-one thousand, two hundred thirty-one".