10020234243991 has 2 divisors, whose sum is σ = 10020234243992. Its totient is φ = 10020234243990.

The previous prime is 10020234243947. The next prime is 10020234244079. The reversal of 10020234243991 is 19934243202001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10020234243991 - 2²³ = 10020225855383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020234243911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010117121995 + 5010117121996.

It is an arithmetic number, because the mean of its divisors is an integer number (5010117121996).

Almost surely, 2^{10020234243991} is an apocalyptic number.

10020234243991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020234243991 is an equidigital number, since it uses as much as digits as its factorization.

10020234243991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

Adding to 10020234243991 its reverse (19934243202001), we get a palindrome (29954477445992).

The spelling of 10020234243991 in words is "ten trillion, twenty billion, two hundred thirty-four million, two hundred forty-three thousand, nine hundred ninety-one".