213201131031 has 48 divisors (see below), whose sum is σ = 364978785600. Its totient is φ = 117340199424.

The previous prime is 213201130937. The next prime is 213201131063. The reversal of 213201131031 is 130131102312.

213201131031 is a `hidden beast` number, since 2 + 1 + 320 + 1 + 1 + 310 + 31 = 666.

213201131031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213201131031 - 2¹⁸ = 213200868887 is a prime.

It is a super-2 number, since 2×213201131031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213201130995 and 213201131013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213201131831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 604585 + ... + 889901.

It is an arithmetic number, because the mean of its divisors is an integer number (7603724700).

Almost surely, 2^213201131031 is an apocalyptic number.

213201131031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

213201131031 is a deficient number, since it is larger than the sum of its proper divisors (151777654569).

213201131031 is a wasteful number, since it uses less digits than its factorization.

213201131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285768 (or 285765 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 213201131031 its reverse (130131102312), we get a palindrome (343332233343).

The spelling of 213201131031 in words is "two hundred thirteen billion, two hundred one million, one hundred thirty-one thousand, thirty-one".