1111230131211 has 6 divisors (see below), whose sum is σ = 1605110189540. Its totient is φ = 740820087468.

The previous prime is 1111230131183. The next prime is 1111230131233. The reversal of 1111230131211 is 1121310321111.

1111230131211 is a `hidden beast` number, since 1 + 111 + 230 + 1 + 312 + 11 = 666.

It is not a de Polignac number, because 1111230131211 - 2³⁴ = 1094050262027 is a prime.

It is a super-2 number, since 2×1111230131211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111230131111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61735007281 + ... + 61735007298.

Almost surely, 2^{1111230131211} is an apocalyptic number.

1111230131211 is a deficient number, since it is larger than the sum of its proper divisors (493880058329).

1111230131211 is a wasteful number, since it uses less digits than its factorization.

1111230131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123470014585 (or 123470014582 counting only the distinct ones).

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

Adding to 1111230131211 its reverse (1121310321111), we get a palindrome (2232540452322).

The spelling of 1111230131211 in words is "one trillion, one hundred eleven billion, two hundred thirty million, one hundred thirty-one thousand, two hundred eleven".