213515442344 has 16 divisors (see below), whose sum is σ = 408859358400. Its totient is φ = 104486280112.

The previous prime is 213515442271. The next prime is 213515442353. The reversal of 213515442344 is 443244515312.

It is a junction number, because it is equal to n+sod(n) for n = 213515442298 and 213515442307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283929734 + ... + 283930485.

It is an arithmetic number, because the mean of its divisors is an integer number (25553709900).

Almost surely, 2^213515442344 is an apocalyptic number.

It is an amenable number.

213515442344 is a deficient number, since it is larger than the sum of its proper divisors (195343916056).

213515442344 is a wasteful number, since it uses less digits than its factorization.

213515442344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567860272 (or 567860268 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

Adding to 213515442344 its reverse (443244515312), we get a palindrome (656759957656).

The spelling of 213515442344 in words is "two hundred thirteen billion, five hundred fifteen million, four hundred forty-two thousand, three hundred forty-four".