213342024431 has 4 divisors (see below), whose sum is σ = 213343113432. Its totient is φ = 213340935432.

The previous prime is 213342024409. The next prime is 213342024449. The reversal of 213342024431 is 134420243312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 213342024431 - 2⁶ = 213342024367 is a prime.

It is a super-2 number, since 2×213342024431² (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 = 213342024394 and 213342024403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213342024461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160256 + ... + 672581.

It is an arithmetic number, because the mean of its divisors is an integer number (53335778358).

Almost surely, 2^213342024431 is an apocalyptic number.

213342024431 is a deficient number, since it is larger than the sum of its proper divisors (1089001).

213342024431 is an equidigital number, since it uses as much as digits as its factorization.

213342024431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089000.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 213342024431 its reverse (134420243312), we get a palindrome (347762267743).

The spelling of 213342024431 in words is "two hundred thirteen billion, three hundred forty-two million, twenty-four thousand, four hundred thirty-one".