1121001023 has 2 divisors, whose sum is σ = 1121001024. Its totient is φ = 1121001022.

The previous prime is 1121001001. The next prime is 1121001031. The reversal of 1121001023 is 3201001211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121001023 - 2¹² = 1120996927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121000995 and 1121001013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121001523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560500511 + 560500512.

It is an arithmetic number, because the mean of its divisors is an integer number (560500512).

Almost surely, 2^1121001023 is an apocalyptic number.

1121001023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121001023 is an equidigital number, since it uses as much as digits as its factorization.

1121001023 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 11.

The square root of 1121001023 is about 33481.3533627301. The cubic root of 1121001023 is about 1038.8081214561.

Adding to 1121001023 its reverse (3201001211), we get a palindrome (4322002234).

The spelling of 1121001023 in words is "one billion, one hundred twenty-one million, one thousand, twenty-three".