213212320231303 has 16 divisors (see below), whose sum is σ = 217128142534464. Its totient is φ = 209322393477120.

The previous prime is 213212320231289. The next prime is 213212320231307. The reversal of 213212320231303 is 303132023212312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 213212320231303 - 2⁵ = 213212320231271 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 (213212320231307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53492401 + ... + 57339877.

It is an arithmetic number, because the mean of its divisors is an integer number (13570508908404).

Almost surely, 2^{213212320231303} is an apocalyptic number.

213212320231303 is a deficient number, since it is larger than the sum of its proper divisors (3915822303161).

213212320231303 is a wasteful number, since it uses less digits than its factorization.

213212320231303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3850842.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 213212320231303 its reverse (303132023212312), we get a palindrome (516344343443615).

The spelling of 213212320231303 in words is "two hundred thirteen trillion, two hundred twelve billion, three hundred twenty million, two hundred thirty-one thousand, three hundred three".