203121032334401 has 4 divisors (see below), whose sum is σ = 213811612983600. Its totient is φ = 192430451685204.

The previous prime is 203121032334347. The next prime is 203121032334403. The reversal of 203121032334401 is 104433230121302.

203121032334401 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203121032334401 - 2¹⁰ = 203121032333377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203121032334403) 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, 5345290324571 + ... + 5345290324608.

It is an arithmetic number, because the mean of its divisors is an integer number (53452903245900).

Almost surely, 2^{203121032334401} is an apocalyptic number.

It is an amenable number.

203121032334401 is a deficient number, since it is larger than the sum of its proper divisors (10690580649199).

203121032334401 is a wasteful number, since it uses less digits than its factorization.

203121032334401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10690580649198.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 203121032334401 its reverse (104433230121302), we get a palindrome (307554262455703).

The spelling of 203121032334401 in words is "two hundred three trillion, one hundred twenty-one billion, thirty-two million, three hundred thirty-four thousand, four hundred one".