203022423402 has 32 divisors (see below), whose sum is σ = 410980082688. Its totient is φ = 66851773296.

The previous prime is 203022423397. The next prime is 203022423419. The reversal of 203022423402 is 204324220302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7118623 + ... + 7147085.

It is an arithmetic number, because the mean of its divisors is an integer number (12843127584).

Almost surely, 2^203022423402 is an apocalyptic number.

203022423402 is an abundant number, since it is smaller than the sum of its proper divisors (207957659286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203022423402 is a wasteful number, since it uses less digits than its factorization.

203022423402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42874.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 203022423402 its reverse (204324220302), we get a palindrome (407346643704).

The spelling of 203022423402 in words is "two hundred three billion, twenty-two million, four hundred twenty-three thousand, four hundred two".