213201311131 has 2 divisors, whose sum is σ = 213201311132. Its totient is φ = 213201311130.

The previous prime is 213201311039. The next prime is 213201311231. The reversal of 213201311131 is 131113102312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213201311131 - 2⁷ = 213201311003 is a prime.

It is a super-2 number, since 2×213201311131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213201311099 and 213201311108.

It is not a weakly prime, because it can be changed into another prime (213201311231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106600655565 + 106600655566.

It is an arithmetic number, because the mean of its divisors is an integer number (106600655566).

Almost surely, 2^213201311131 is an apocalyptic number.

213201311131 is a deficient number, since it is larger than the sum of its proper divisors (1).

213201311131 is an equidigital number, since it uses as much as digits as its factorization.

213201311131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 213201311131 its reverse (131113102312), we get a palindrome (344314413443).

The spelling of 213201311131 in words is "two hundred thirteen billion, two hundred one million, three hundred eleven thousand, one hundred thirty-one".