1110121113231 has 36 divisors (see below), whose sum is σ = 1739371401768. Its totient is φ = 678235314528.

The previous prime is 1110121113229. The next prime is 1110121113259. The reversal of 1110121113231 is 1323111210111.

It is not a de Polignac number, because 1110121113231 - 2¹ = 1110121113229 is a prime.

It is a super-2 number, since 2×1110121113231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110121113271) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2015016 + ... + 2506098.

Almost surely, 2^{1110121113231} is an apocalyptic number.

1110121113231 is a deficient number, since it is larger than the sum of its proper divisors (629250288537).

1110121113231 is a wasteful number, since it uses less digits than its factorization.

1110121113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491380 (or 491238 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1110121113231 its reverse (1323111210111), we get a palindrome (2433232323342).

The spelling of 1110121113231 in words is "one trillion, one hundred ten billion, one hundred twenty-one million, one hundred thirteen thousand, two hundred thirty-one".