213012220231 has 8 divisors (see below), whose sum is σ = 214668767600. Its totient is φ = 211359938112.

The previous prime is 213012220229. The next prime is 213012220283. The reversal of 213012220231 is 132022210312.

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

It is a cyclic number.

It is not a de Polignac number, because 213012220231 - 2¹ = 213012220229 is a prime.

It is a super-2 number, since 2×213012220231² (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 = 213012220199 and 213012220208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213012223231) 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, 966006 + ... + 1165843.

It is an arithmetic number, because the mean of its divisors is an integer number (26833595950).

Almost surely, 2^213012220231 is an apocalyptic number.

213012220231 is a deficient number, since it is larger than the sum of its proper divisors (1656547369).

213012220231 is a wasteful number, since it uses less digits than its factorization.

213012220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132625.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 213012220231 its reverse (132022210312), we get a palindrome (345034430543).

The spelling of 213012220231 in words is "two hundred thirteen billion, twelve million, two hundred twenty thousand, two hundred thirty-one".