213230320131 has 8 divisors (see below), whose sum is σ = 287238094864. Its totient is φ = 140688046080.

The previous prime is 213230320123. The next prime is 213230320139. The reversal of 213230320131 is 131023032312.

It is an interprime number because it is at equal distance from previous prime (213230320123) and next prime (213230320139).

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

It is not a de Polignac number, because 213230320131 - 2³ = 213230320123 is a prime.

It is a super-2 number, since 2×213230320131² (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 = 213230320098 and 213230320107.

It is not an unprimeable number, because it can be changed into a prime (213230320139) 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, 366374830 + ... + 366375411.

It is an arithmetic number, because the mean of its divisors is an integer number (35904761858).

Almost surely, 2^213230320131 is an apocalyptic number.

213230320131 is a deficient number, since it is larger than the sum of its proper divisors (74007774733).

213230320131 is an equidigital number, since it uses as much as digits as its factorization.

213230320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732750341.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 213230320131 its reverse (131023032312), we get a palindrome (344253352443).

The spelling of 213230320131 in words is "two hundred thirteen billion, two hundred thirty million, three hundred twenty thousand, one hundred thirty-one".