203242012031 has 4 divisors (see below), whose sum is σ = 203244695472. Its totient is φ = 203239328592.

The previous prime is 203242011983. The next prime is 203242012033. The reversal of 203242012031 is 130210242302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203242012031 - 2¹⁴ = 203241995647 is a prime.

It is a super-2 number, since 2×203242012031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203242011994 and 203242012012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203242012033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1224710 + ... + 1380723.

It is an arithmetic number, because the mean of its divisors is an integer number (50811173868).

Almost surely, 2^203242012031 is an apocalyptic number.

203242012031 is a deficient number, since it is larger than the sum of its proper divisors (2683441).

203242012031 is an equidigital number, since it uses as much as digits as its factorization.

203242012031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683440.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 203242012031 its reverse (130210242302), we get a palindrome (333452254333).

The spelling of 203242012031 in words is "two hundred three billion, two hundred forty-two million, twelve thousand, thirty-one".