203022423397 has 2 divisors, whose sum is σ = 203022423398. Its totient is φ = 203022423396.

The previous prime is 203022423391. The next prime is 203022423419. The reversal of 203022423397 is 793324220302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141756768036 + 61265655361 = 376506^2 + 247519^2 .

It is a cyclic number.

It is not a de Polignac number, because 203022423397 - 2²⁷ = 202888205669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203022423391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101511211698 + 101511211699.

It is an arithmetic number, because the mean of its divisors is an integer number (101511211699).

Almost surely, 2^203022423397 is an apocalyptic number.

It is an amenable number.

203022423397 is a deficient number, since it is larger than the sum of its proper divisors (1).

203022423397 is an equidigital number, since it uses as much as digits as its factorization.

203022423397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 37.

Adding to 203022423397 its reverse (793324220302), we get a palindrome (996346643699).

The spelling of 203022423397 in words is "two hundred three billion, twenty-two million, four hundred twenty-three thousand, three hundred ninety-seven".