203131423113420 has 48 divisors (see below), whose sum is σ = 568768984223328. Its totient is φ = 54168284305920.

The previous prime is 203131423113397. The next prime is 203131423113431. The reversal of 203131423113420 is 24311324131302.

It is a super-2 number, since 2×203131423113420² (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35583202 + ... + 40895318.

It is an arithmetic number, because the mean of its divisors is an integer number (11849353837986).

Almost surely, 2^{203131423113420} is an apocalyptic number.

203131423113420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203131423113420 is an abundant number, since it is smaller than the sum of its proper divisors (365637561109908).

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

203131423113420 is a wasteful number, since it uses less digits than its factorization.

203131423113420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5949450 (or 5949448 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 203131423113420 its reverse (24311324131302), we get a palindrome (227442747244722).

The spelling of 203131423113420 in words is "two hundred three trillion, one hundred thirty-one billion, four hundred twenty-three million, one hundred thirteen thousand, four hundred twenty".