213142312211231 has 8 divisors (see below), whose sum is σ = 230703041568384. Its totient is φ = 195748035265440.

The previous prime is 213142312211219. The next prime is 213142312211251. The reversal of 213142312211231 is 132112213241312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213142312211231 is a prime.

It is a super-2 number, since 2×213142312211231² (a number of 29 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 = 213142312211194 and 213142312211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213142312211251) 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, 41613100175 + ... + 41613105296.

It is an arithmetic number, because the mean of its divisors is an integer number (28837880196048).

Almost surely, 2^{213142312211231} is an apocalyptic number.

213142312211231 is a deficient number, since it is larger than the sum of its proper divisors (17560729357153).

213142312211231 is a wasteful number, since it uses less digits than its factorization.

213142312211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83226205681.

The product of its digits is 3456, while the sum is 29.

Adding to 213142312211231 its reverse (132112213241312), we get a palindrome (345254525452543).

The spelling of 213142312211231 in words is "two hundred thirteen trillion, one hundred forty-two billion, three hundred twelve million, two hundred eleven thousand, two hundred thirty-one".