20010243293 has 2 divisors, whose sum is σ = 20010243294. Its totient is φ = 20010243292.

The previous prime is 20010243277. The next prime is 20010243299. The reversal of 20010243293 is 39234201002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17119890649 + 2890352644 = 130843^2 + 53762^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010243293 - 2⁴ = 20010243277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010243299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005121646 + 10005121647.

It is an arithmetic number, because the mean of its divisors is an integer number (10005121647).

Almost surely, 2^20010243293 is an apocalyptic number.

It is an amenable number.

20010243293 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010243293 is an equidigital number, since it uses as much as digits as its factorization.

20010243293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 20010243293 its reverse (39234201002), we get a palindrome (59244444295).

The spelling of 20010243293 in words is "twenty billion, ten million, two hundred forty-three thousand, two hundred ninety-three".