213434123144 has 16 divisors (see below), whose sum is σ = 436569797520. Its totient is φ = 97015510480.

The previous prime is 213434123107. The next prime is 213434123153. The reversal of 213434123144 is 441321434312.

It is a self number, because there is not a number n which added to its sum of digits gives 213434123144.

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, 1212693794 + ... + 1212693969.

It is an arithmetic number, because the mean of its divisors is an integer number (27285612345).

Almost surely, 2^213434123144 is an apocalyptic number.

It is an amenable number.

213434123144 is an abundant number, since it is smaller than the sum of its proper divisors (223135674376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213434123144 is a wasteful number, since it uses less digits than its factorization.

213434123144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425387780 (or 2425387776 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

Adding to 213434123144 its reverse (441321434312), we get a palindrome (654755557456).

The spelling of 213434123144 in words is "two hundred thirteen billion, four hundred thirty-four million, one hundred twenty-three thousand, one hundred forty-four".