202104430397 has 2 divisors, whose sum is σ = 202104430398. Its totient is φ = 202104430396.

The previous prime is 202104430379. The next prime is 202104430441. The reversal of 202104430397 is 793034401202.

Together with previous prime (202104430379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135905771716 + 66198658681 = 368654^2 + 257291^2 .

It is a cyclic number.

It is not a de Polignac number, because 202104430397 - 2⁸ = 202104430141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202104430327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101052215198 + 101052215199.

It is an arithmetic number, because the mean of its divisors is an integer number (101052215199).

Almost surely, 2^202104430397 is an apocalyptic number.

It is an amenable number.

202104430397 is a deficient number, since it is larger than the sum of its proper divisors (1).

202104430397 is an equidigital number, since it uses as much as digits as its factorization.

202104430397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

Adding to 202104430397 its reverse (793034401202), we get a palindrome (995138831599).

The spelling of 202104430397 in words is "two hundred two billion, one hundred four million, four hundred thirty thousand, three hundred ninety-seven".