20362231243 has 2 divisors, whose sum is σ = 20362231244. Its totient is φ = 20362231242.

The previous prime is 20362231237. The next prime is 20362231319. The reversal of 20362231243 is 34213226302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20362231243 - 2⁹ = 20362230731 is a prime.

It is a super-2 number, since 2×20362231243² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20362231843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10181115621 + 10181115622.

It is an arithmetic number, because the mean of its divisors is an integer number (10181115622).

Almost surely, 2^20362231243 is an apocalyptic number.

20362231243 is a deficient number, since it is larger than the sum of its proper divisors (1).

20362231243 is an equidigital number, since it uses as much as digits as its factorization.

20362231243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 20362231243 its reverse (34213226302), we get a palindrome (54575457545).

The spelling of 20362231243 in words is "twenty billion, three hundred sixty-two million, two hundred thirty-one thousand, two hundred forty-three".