213301263 has 24 divisors (see below), whose sum is σ = 339784752. Its totient is φ = 118589184.

The previous prime is 213301237. The next prime is 213301279. The reversal of 213301263 is 362103312.

It is not a de Polignac number, because 213301263 - 2⁸ = 213301007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213301213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14170 + ... + 25047.

It is an arithmetic number, because the mean of its divisors is an integer number (14157698).

Almost surely, 2^213301263 is an apocalyptic number.

213301263 is a deficient number, since it is larger than the sum of its proper divisors (126483489).

213301263 is a wasteful number, since it uses less digits than its factorization.

213301263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39271 (or 39264 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 213301263 is about 14604.8369727293. The cubic root of 213301263 is about 597.4906896771.

Adding to 213301263 its reverse (362103312), we get a palindrome (575404575).

It can be divided in two parts, 213 and 301263, that added together give a triangular number (301476 = T₇₇₆).

The spelling of 213301263 in words is "two hundred thirteen million, three hundred one thousand, two hundred sixty-three".