202423031287 has 2 divisors, whose sum is σ = 202423031288. Its totient is φ = 202423031286.

The previous prime is 202423031263. The next prime is 202423031401. The reversal of 202423031287 is 782130324202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202423031287 - 2¹¹ = 202423029239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202423031887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101211515643 + 101211515644.

It is an arithmetic number, because the mean of its divisors is an integer number (101211515644).

Almost surely, 2^202423031287 is an apocalyptic number.

202423031287 is a deficient number, since it is larger than the sum of its proper divisors (1).

202423031287 is an equidigital number, since it uses as much as digits as its factorization.

202423031287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 34.

Adding to 202423031287 its reverse (782130324202), we get a palindrome (984553355489).

The spelling of 202423031287 in words is "two hundred two billion, four hundred twenty-three million, thirty-one thousand, two hundred eighty-seven".