203031032112021 has 8 divisors (see below), whose sum is σ = 270709105739904. Its totient is φ = 135353489946080.

The previous prime is 203031032111981. The next prime is 203031032112061. The reversal of 203031032112021 is 120211230130302.

It is an interprime number because it is at equal distance from previous prime (203031032111981) and next prime (203031032112061).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203031032112021 - 2²³ = 203031023723413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203031032112061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131973240 + ... + 133502801.

It is an arithmetic number, because the mean of its divisors is an integer number (33838638217488).

Almost surely, 2^{203031032112021} is an apocalyptic number.

It is an amenable number.

203031032112021 is a deficient number, since it is larger than the sum of its proper divisors (67678073627883).

203031032112021 is a wasteful number, since it uses less digits than its factorization.

203031032112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265730971.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 203031032112021 its reverse (120211230130302), we get a palindrome (323242262242323).

The spelling of 203031032112021 in words is "two hundred three trillion, thirty-one billion, thirty-two million, one hundred twelve thousand, twenty-one".