203020034540 has 48 divisors (see below), whose sum is σ = 429290803200. Its totient is φ = 80646667200.

The previous prime is 203020034537. The next prime is 203020034551. The reversal of 203020034540 is 45430020302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13349861 + ... + 13365059.

It is an arithmetic number, because the mean of its divisors is an integer number (8943558400).

Almost surely, 2^203020034540 is an apocalyptic number.

203020034540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203020034540 is an abundant number, since it is smaller than the sum of its proper divisors (226270768660).

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

203020034540 is a wasteful number, since it uses less digits than its factorization.

203020034540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19782 (or 19780 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

Adding to 203020034540 its reverse (45430020302), we get a palindrome (248450054842).

The spelling of 203020034540 in words is "two hundred three billion, twenty million, thirty-four thousand, five hundred forty".