203235323340 has 144 divisors (see below), whose sum is σ = 700905858912. Its totient is φ = 43721201664.

The previous prime is 203235323339. The next prime is 203235323381. The reversal of 203235323340 is 43323532302.

It is a super-2 number, since 2×203235323340² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 203235323298 and 203235323307.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1983187 + ... + 2083146.

It is an arithmetic number, because the mean of its divisors is an integer number (4867401798).

Almost surely, 2^203235323340 is an apocalyptic number.

203235323340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203235323340 is an abundant number, since it is smaller than the sum of its proper divisors (497670535572).

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

203235323340 is a wasteful number, since it uses less digits than its factorization.

203235323340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066376 (or 4066367 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 30.

Adding to 203235323340 its reverse (43323532302), we get a palindrome (246558855642).

The spelling of 203235323340 in words is "two hundred three billion, two hundred thirty-five million, three hundred twenty-three thousand, three hundred forty".