213422413431331 has 32 divisors (see below), whose sum is σ = 246823020864000. Its totient is φ = 182887091682048.

The previous prime is 213422413431281. The next prime is 213422413431349. The reversal of 213422413431331 is 133134314224312.

It is a happy number.

It is not a de Polignac number, because 213422413431331 - 2⁹ = 213422413430819 is a prime.

It is a super-2 number, since 2×213422413431331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213422413431361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18833311 + ... + 27956008.

It is an arithmetic number, because the mean of its divisors is an integer number (7713219402000).

Almost surely, 2^{213422413431331} is an apocalyptic number.

213422413431331 is a deficient number, since it is larger than the sum of its proper divisors (33400607432669).

213422413431331 is a wasteful number, since it uses less digits than its factorization.

213422413431331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46789723.

The product of its digits is 124416, while the sum is 37.

Adding to 213422413431331 its reverse (133134314224312), we get a palindrome (346556727655643).

The spelling of 213422413431331 in words is "two hundred thirteen trillion, four hundred twenty-two billion, four hundred thirteen million, four hundred thirty-one thousand, three hundred thirty-one".