20211012293 has 2 divisors, whose sum is σ = 20211012294. Its totient is φ = 20211012292.

The previous prime is 20211012281. The next prime is 20211012299. The reversal of 20211012293 is 39221011202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18465276769 + 1745735524 = 135887^2 + 41782^2 .

It is a cyclic number.

It is not a de Polignac number, because 20211012293 - 2⁴ = 20211012277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20211012299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105506146 + 10105506147.

It is an arithmetic number, because the mean of its divisors is an integer number (10105506147).

Almost surely, 2^20211012293 is an apocalyptic number.

It is an amenable number.

20211012293 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211012293 is an equidigital number, since it uses as much as digits as its factorization.

20211012293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 20211012293 its reverse (39221011202), we get a palindrome (59432023495).

The spelling of 20211012293 in words is "twenty billion, two hundred eleven million, twelve thousand, two hundred ninety-three".