1011212331023 has 2 divisors, whose sum is σ = 1011212331024. Its totient is φ = 1011212331022.

The previous prime is 1011212330929. The next prime is 1011212331047. The reversal of 1011212331023 is 3201332121101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011212331023 - 2¹⁰ = 1011212329999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011212330986 and 1011212331004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011212331223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505606165511 + 505606165512.

It is an arithmetic number, because the mean of its divisors is an integer number (505606165512).

Almost surely, 2^{1011212331023} is an apocalyptic number.

1011212331023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011212331023 is an equidigital number, since it uses as much as digits as its factorization.

1011212331023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1011212331023 its reverse (3201332121101), we get a palindrome (4212544452124).

The spelling of 1011212331023 in words is "one trillion, eleven billion, two hundred twelve million, three hundred thirty-one thousand, twenty-three".