203113042132221 has 36 divisors (see below), whose sum is σ = 318574560189600. Its totient is φ = 124644472059744.

The previous prime is 203113042132207. The next prime is 203113042132223. The reversal of 203113042132221 is 122231240311302.

203113042132221 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 1 + 304 + 2 + 132 + 221 = 666.

It is not a de Polignac number, because 203113042132221 - 2¹⁹ = 203113041607933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203113042132223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 185441631 + ... + 186533708.

It is an arithmetic number, because the mean of its divisors is an integer number (8849293338600).

Almost surely, 2^{203113042132221} is an apocalyptic number.

It is an amenable number.

203113042132221 is a deficient number, since it is larger than the sum of its proper divisors (115461518057379).

203113042132221 is a wasteful number, since it uses less digits than its factorization.

203113042132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371975730 (or 371975714 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 203113042132221 its reverse (122231240311302), we get a palindrome (325344282443523).

The spelling of 203113042132221 in words is "two hundred three trillion, one hundred thirteen billion, forty-two million, one hundred thirty-two thousand, two hundred twenty-one".