203131110013420 has 12 divisors (see below), whose sum is σ = 426575331028224. Its totient is φ = 81252444005360.

The previous prime is 203131110013409. The next prime is 203131110013453. The reversal of 203131110013420 is 24310011131302.

It is a junction number, because it is equal to n+sod(n) for n = 203131110013391 and 203131110013400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5078277750316 + ... + 5078277750355.

It is an arithmetic number, because the mean of its divisors is an integer number (35547944252352).

Almost surely, 2^{203131110013420} is an apocalyptic number.

203131110013420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203131110013420 is an abundant number, since it is smaller than the sum of its proper divisors (223444221014804).

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

203131110013420 is a wasteful number, since it uses less digits than its factorization.

203131110013420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10156555500680 (or 10156555500678 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 203131110013420 its reverse (24310011131302), we get a palindrome (227441121144722).

The spelling of 203131110013420 in words is "two hundred three trillion, one hundred thirty-one billion, one hundred ten million, thirteen thousand, four hundred twenty".