213031412231 has 16 divisors (see below), whose sum is σ = 246193136640. Its totient is φ = 182180446080.

The previous prime is 213031412221. The next prime is 213031412303. The reversal of 213031412231 is 132214130312.

It is a cyclic number.

It is not a de Polignac number, because 213031412231 - 2¹⁰ = 213031411207 is a prime.

It is a super-2 number, since 2×213031412231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213031412197 and 213031412206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213031412221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82250 + ... + 657896.

It is an arithmetic number, because the mean of its divisors is an integer number (15387071040).

Almost surely, 2^213031412231 is an apocalyptic number.

213031412231 is a deficient number, since it is larger than the sum of its proper divisors (33161724409).

213031412231 is a wasteful number, since it uses less digits than its factorization.

213031412231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577654.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 213031412231 its reverse (132214130312), we get a palindrome (345245542543).

The spelling of 213031412231 in words is "two hundred thirteen billion, thirty-one million, four hundred twelve thousand, two hundred thirty-one".