203101013311021 has 16 divisors (see below), whose sum is σ = 236665921536000. Its totient is φ = 170689132466928.

The previous prime is 203101013310989. The next prime is 203101013311039. The reversal of 203101013311021 is 120113310101302.

It is a cyclic number.

It is not a de Polignac number, because 203101013311021 - 2⁵ = 203101013310989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203101013311021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203101013311621) 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 15 ways as a sum of consecutive naturals, for example, 641839221 + ... + 642155578.

It is an arithmetic number, because the mean of its divisors is an integer number (14791620096000).

Almost surely, 2^{203101013311021} is an apocalyptic number.

It is an amenable number.

203101013311021 is a deficient number, since it is larger than the sum of its proper divisors (33564908224979).

203101013311021 is a wasteful number, since it uses less digits than its factorization.

203101013311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283995248.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 203101013311021 its reverse (120113310101302), we get a palindrome (323214323412323).

The spelling of 203101013311021 in words is "two hundred three trillion, one hundred one billion, thirteen million, three hundred eleven thousand, twenty-one".