20301139193 has 2 divisors, whose sum is σ = 20301139194. Its totient is φ = 20301139192.

The previous prime is 20301139139. The next prime is 20301139213. The reversal of 20301139193 is 39193110302.

Together with previous prime (20301139139) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19051728784 + 1249410409 = 138028^2 + 35347^2 .

It is a cyclic number.

It is not a de Polignac number, because 20301139193 - 2¹⁸ = 20300877049 is a prime.

It is not a weakly prime, because it can be changed into another prime (20301139693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150569596 + 10150569597.

It is an arithmetic number, because the mean of its divisors is an integer number (10150569597).

Almost surely, 2^20301139193 is an apocalyptic number.

It is an amenable number.

20301139193 is a deficient number, since it is larger than the sum of its proper divisors (1).

20301139193 is an equidigital number, since it uses as much as digits as its factorization.

20301139193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 32.

Adding to 20301139193 its reverse (39193110302), we get a palindrome (59494249495).

The spelling of 20301139193 in words is "twenty billion, three hundred one million, one hundred thirty-nine thousand, one hundred ninety-three".