20301203243 has 2 divisors, whose sum is σ = 20301203244. Its totient is φ = 20301203242.

The previous prime is 20301203231. The next prime is 20301203249. The reversal of 20301203243 is 34230210302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20301203243 - 2²⁶ = 20234094379 is a prime.

It is a super-2 number, since 2×20301203243² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20301203249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150601621 + 10150601622.

It is an arithmetic number, because the mean of its divisors is an integer number (10150601622).

Almost surely, 2^20301203243 is an apocalyptic number.

20301203243 is a deficient number, since it is larger than the sum of its proper divisors (1).

20301203243 is an equidigital number, since it uses as much as digits as its factorization.

20301203243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20301203243 its reverse (34230210302), we get a palindrome (54531413545).

The spelling of 20301203243 in words is "twenty billion, three hundred one million, two hundred three thousand, two hundred forty-three".