203011300321231 has 4 divisors (see below), whose sum is σ = 203152378363200. Its totient is φ = 202870222279264.

The previous prime is 203011300321187. The next prime is 203011300321241. The reversal of 203011300321231 is 132123003110302.

203011300321231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203011300321231 is a prime.

It is a super-2 number, since 2×203011300321231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203011300321241) 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, 70539018826 + ... + 70539021703.

It is an arithmetic number, because the mean of its divisors is an integer number (50788094590800).

Almost surely, 2^{203011300321231} is an apocalyptic number.

203011300321231 is a deficient number, since it is larger than the sum of its proper divisors (141078041969).

203011300321231 is a wasteful number, since it uses less digits than its factorization.

203011300321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141078041968.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 203011300321231 its reverse (132123003110302), we get a palindrome (335134303431533).

The spelling of 203011300321231 in words is "two hundred three trillion, eleven billion, three hundred million, three hundred twenty-one thousand, two hundred thirty-one".