213020331001311 has 16 divisors (see below), whose sum is σ = 296816057455104. Its totient is φ = 135759617180544.

The previous prime is 213020331001307. The next prime is 213020331001339. The reversal of 213020331001311 is 113100133020312.

It is a happy number.

It is not a de Polignac number, because 213020331001311 - 2² = 213020331001307 is a prime.

It is a super-2 number, since 2×213020331001311² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213020331001381) 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, 17567232186 + ... + 17567244311.

It is an arithmetic number, because the mean of its divisors is an integer number (18551003590944).

Almost surely, 2^{213020331001311} is an apocalyptic number.

213020331001311 is a deficient number, since it is larger than the sum of its proper divisors (83795726453793).

213020331001311 is a wasteful number, since it uses less digits than its factorization.

213020331001311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35134476590.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 213020331001311 its reverse (113100133020312), we get a palindrome (326120464021623).

The spelling of 213020331001311 in words is "two hundred thirteen trillion, twenty billion, three hundred thirty-one million, one thousand, three hundred eleven".