1121003112231 has 24 divisors (see below), whose sum is σ = 1719147029184. Its totient is φ = 701457914880.

The previous prime is 1121003112223. The next prime is 1121003112247. The reversal of 1121003112231 is 1322113001211.

1121003112231 is a `hidden beast` number, since 1 + 121 + 0 + 0 + 311 + 2 + 231 = 666.

It is not a de Polignac number, because 1121003112231 - 2³ = 1121003112223 is a prime.

It is a super-2 number, since 2×1121003112231² (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 (1121003112211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9925890 + ... + 10038191.

It is an arithmetic number, because the mean of its divisors is an integer number (71631126216).

Almost surely, 2^{1121003112231} is an apocalyptic number.

1121003112231 is a deficient number, since it is larger than the sum of its proper divisors (598143916953).

1121003112231 is a wasteful number, since it uses less digits than its factorization.

1121003112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19964471 (or 19964468 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1121003112231 its reverse (1322113001211), we get a palindrome (2443116113442).

The spelling of 1121003112231 in words is "one trillion, one hundred twenty-one billion, three million, one hundred twelve thousand, two hundred thirty-one".