202142423403 has 12 divisors (see below), whose sum is σ = 292017201840. Its totient is φ = 134746061136.

The previous prime is 202142423401. The next prime is 202142423411. The reversal of 202142423403 is 304324241202.

202142423403 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 424 + 234 + 0 + 3 = 666.

It is not a de Polignac number, because 202142423403 - 2¹ = 202142423401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202142423401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1213623 + ... + 1370096.

It is an arithmetic number, because the mean of its divisors is an integer number (24334766820).

Almost surely, 2^202142423403 is an apocalyptic number.

202142423403 is a deficient number, since it is larger than the sum of its proper divisors (89874778437).

202142423403 is a wasteful number, since it uses less digits than its factorization.

202142423403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592418 (or 2592415 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 202142423403 its reverse (304324241202), we get a palindrome (506466664605).

The spelling of 202142423403 in words is "two hundred two billion, one hundred forty-two million, four hundred twenty-three thousand, four hundred three".