331201210203013 has 4 divisors (see below), whose sum is σ = 350683634332620. Its totient is φ = 311718786073408.

The previous prime is 331201210202981. The next prime is 331201210203037. The reversal of 331201210203013 is 310302012102133.

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

It can be written as a sum of positive squares in 2 ways, for example, as 172617107854689 + 158584102348324 = 13138383^2 + 12593018^2 .

It is a cyclic number.

It is not a de Polignac number, because 331201210203013 - 2⁵ = 331201210202981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331201210200013) 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, 9741212064778 + ... + 9741212064811.

It is an arithmetic number, because the mean of its divisors is an integer number (87670908583155).

Almost surely, 2^{331201210203013} is an apocalyptic number.

It is an amenable number.

331201210203013 is a deficient number, since it is larger than the sum of its proper divisors (19482424129607).

331201210203013 is a wasteful number, since it uses less digits than its factorization.

331201210203013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19482424129606.

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

Adding to 331201210203013 its reverse (310302012102133), we get a palindrome (641503222305146).

The spelling of 331201210203013 in words is "three hundred thirty-one trillion, two hundred one billion, two hundred ten million, two hundred three thousand, thirteen".