1121002121023 has 2 divisors, whose sum is σ = 1121002121024. Its totient is φ = 1121002121022.

The previous prime is 1121002121021. The next prime is 1121002121039. The reversal of 1121002121023 is 3201212001211.

It is an a-pointer prime, because the next prime (1121002121039) can be obtained adding 1121002121023 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121002121023 - 2¹ = 1121002121021 is a prime.

Together with 1121002121021, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1121002120988 and 1121002121006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121002121021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560501060511 + 560501060512.

It is an arithmetic number, because the mean of its divisors is an integer number (560501060512).

Almost surely, 2^{1121002121023} is an apocalyptic number.

1121002121023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121002121023 is an equidigital number, since it uses as much as digits as its factorization.

1121002121023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1121002121023 its reverse (3201212001211), we get a palindrome (4322214122234).

The spelling of 1121002121023 in words is "one trillion, one hundred twenty-one billion, two million, one hundred twenty-one thousand, twenty-three".