202243121407 has 2 divisors, whose sum is σ = 202243121408. Its totient is φ = 202243121406.

The previous prime is 202243121389. The next prime is 202243121449. The reversal of 202243121407 is 704121342202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202243121407 - 2²⁷ = 202108903679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202243121477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101121560703 + 101121560704.

It is an arithmetic number, because the mean of its divisors is an integer number (101121560704).

Almost surely, 2^202243121407 is an apocalyptic number.

202243121407 is a deficient number, since it is larger than the sum of its proper divisors (1).

202243121407 is an equidigital number, since it uses as much as digits as its factorization.

202243121407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 202243121407 its reverse (704121342202), we get a palindrome (906364463609).

The spelling of 202243121407 in words is "two hundred two billion, two hundred forty-three million, one hundred twenty-one thousand, four hundred seven".