203140433020 has 72 divisors (see below), whose sum is σ = 509656107744. Its totient is φ = 66619943808.

The previous prime is 203140433009. The next prime is 203140433053. The reversal of 203140433020 is 20334041302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 203140432982 and 203140433000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1297399 + ... + 1445518.

It is an arithmetic number, because the mean of its divisors is an integer number (7078557052).

Almost surely, 2^203140433020 is an apocalyptic number.

203140433020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203140433020 is an abundant number, since it is smaller than the sum of its proper divisors (306515674724).

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

203140433020 is a wasteful number, since it uses less digits than its factorization.

203140433020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742979 (or 2742954 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 203140433020 its reverse (20334041302), we get a palindrome (223474474322).

The spelling of 203140433020 in words is "two hundred three billion, one hundred forty million, four hundred thirty-three thousand, twenty".