213023201331 has 8 divisors (see below), whose sum is σ = 284053282240. Its totient is φ = 142004293992.

The previous prime is 213023201327. The next prime is 213023201351. The reversal of 213023201331 is 133102320312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213023201331 - 2² = 213023201327 is a prime.

It is a super-2 number, since 2×213023201331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213023201298 and 213023201307.

It is not an unprimeable number, because it can be changed into a prime (213023201311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2748805 + ... + 2825238.

It is an arithmetic number, because the mean of its divisors is an integer number (35506660280).

Almost surely, 2^213023201331 is an apocalyptic number.

213023201331 is a deficient number, since it is larger than the sum of its proper divisors (71030080909).

213023201331 is a wasteful number, since it uses less digits than its factorization.

213023201331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586785.

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

Adding to 213023201331 its reverse (133102320312), we get a palindrome (346125521643).

The spelling of 213023201331 in words is "two hundred thirteen billion, twenty-three million, two hundred one thousand, three hundred thirty-one".