203442323133 has 32 divisors (see below), whose sum is σ = 312858842112. Its totient is φ = 115184160000.

The previous prime is 203442323087. The next prime is 203442323173. The reversal of 203442323133 is 331323244302.

It is not a de Polignac number, because 203442323133 - 2¹⁸ = 203442060989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203442323133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203442323173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7701438 + ... + 7727808.

It is an arithmetic number, because the mean of its divisors is an integer number (9776838816).

Almost surely, 2^203442323133 is an apocalyptic number.

It is an amenable number.

203442323133 is a deficient number, since it is larger than the sum of its proper divisors (109416518979).

203442323133 is a wasteful number, since it uses less digits than its factorization.

203442323133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29745.

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 203442323133 its reverse (331323244302), we get a palindrome (534765567435).

The spelling of 203442323133 in words is "two hundred three billion, four hundred forty-two million, three hundred twenty-three thousand, one hundred thirty-three".