203111040233420 has 24 divisors (see below), whose sum is σ = 465308928535248. Its totient is φ = 73858560084800.

The previous prime is 203111040233401. The next prime is 203111040233477. The reversal of 203111040233420 is 24332040111302.

It is a self number, because there is not a number n which added to its sum of digits gives 203111040233420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461616000311 + ... + 461616000750.

It is an arithmetic number, because the mean of its divisors is an integer number (19387872022302).

Almost surely, 2^{203111040233420} is an apocalyptic number.

203111040233420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203111040233420 is an abundant number, since it is smaller than the sum of its proper divisors (262197888301828).

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

203111040233420 is a wasteful number, since it uses less digits than its factorization.

203111040233420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923232001081 (or 923232001079 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 203111040233420 its reverse (24332040111302), we get a palindrome (227443080344722).

The spelling of 203111040233420 in words is "two hundred three trillion, one hundred eleven billion, forty million, two hundred thirty-three thousand, four hundred twenty".