203402332011320 has 64 divisors (see below), whose sum is σ = 497644540585920. Its totient is φ = 74373249982464.

The previous prime is 203402332011271. The next prime is 203402332011371. The reversal of 203402332011320 is 23110233204302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 203402332011320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1898773289 + ... + 1898880408.

It is an arithmetic number, because the mean of its divisors is an integer number (7775695946655).

Almost surely, 2^{203402332011320} is an apocalyptic number.

203402332011320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203402332011320 is an abundant number, since it is smaller than the sum of its proper divisors (294242208574600).

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

203402332011320 is a wasteful number, since it uses less digits than its factorization.

203402332011320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797653824 (or 3797653820 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 203402332011320 its reverse (23110233204302), we get a palindrome (226512565215622).

The spelling of 203402332011320 in words is "two hundred three trillion, four hundred two billion, three hundred thirty-two million, eleven thousand, three hundred twenty".