1012100320823 has 2 divisors, whose sum is σ = 1012100320824. Its totient is φ = 1012100320822.

The previous prime is 1012100320817. The next prime is 1012100320837. The reversal of 1012100320823 is 3280230012101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012100320823 - 2²⁸ = 1011831885367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012100320873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506050160411 + 506050160412.

It is an arithmetic number, because the mean of its divisors is an integer number (506050160412).

Almost surely, 2^{1012100320823} is an apocalyptic number.

1012100320823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012100320823 is an equidigital number, since it uses as much as digits as its factorization.

1012100320823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1012100320823 its reverse (3280230012101), we get a palindrome (4292330332924).

The spelling of 1012100320823 in words is "one trillion, twelve billion, one hundred million, three hundred twenty thousand, eight hundred twenty-three".