1121120100031 has 2 divisors, whose sum is σ = 1121120100032. Its totient is φ = 1121120100030.

The previous prime is 1121120100019. The next prime is 1121120100047. The reversal of 1121120100031 is 1300010211211.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1300010211211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121120100031 - 2²⁵ = 1121086545599 is a prime.

It is a super-2 number, since 2×1121120100031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121120099984 and 1121120100020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121120100011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560560050015 + 560560050016.

It is an arithmetic number, because the mean of its divisors is an integer number (560560050016).

Almost surely, 2^{1121120100031} is an apocalyptic number.

1121120100031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121120100031 is an equidigital number, since it uses as much as digits as its factorization.

1121120100031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1121120100031 its reverse (1300010211211), we get a palindrome (2421130311242).

The spelling of 1121120100031 in words is "one trillion, one hundred twenty-one billion, one hundred twenty million, one hundred thousand, thirty-one".