1121310220231 has 8 divisors (see below), whose sum is σ = 1123504113680. Its totient is φ = 1119116518272.

The previous prime is 1121310220211. The next prime is 1121310220253. The reversal of 1121310220231 is 1320220131211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121310220231 - 2⁹ = 1121310219719 is a prime.

It is a super-2 number, since 2×1121310220231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121310220199 and 1121310220208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121310220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19075321 + ... + 19134013.

It is an arithmetic number, because the mean of its divisors is an integer number (140438014210).

Almost surely, 2^{1121310220231} is an apocalyptic number.

1121310220231 is a deficient number, since it is larger than the sum of its proper divisors (2193893449).

1121310220231 is an equidigital number, since it uses as much as digits as its factorization.

1121310220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95745.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1121310220231 its reverse (1320220131211), we get a palindrome (2441530351442).

The spelling of 1121310220231 in words is "one trillion, one hundred twenty-one billion, three hundred ten million, two hundred twenty thousand, two hundred thirty-one".