213434405152 has 24 divisors (see below), whose sum is σ = 420209275500. Its totient is φ = 106714589184.

The previous prime is 213434405147. The next prime is 213434405161. The reversal of 213434405152 is 251504434312.

It can be written as a sum of positive squares in 2 ways, for example, as 174025802896 + 39408602256 = 417164^2 + 198516^2 .

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, 2571924 + ... + 2653612.

Almost surely, 2^213434405152 is an apocalyptic number.

It is an amenable number.

213434405152 is a deficient number, since it is larger than the sum of its proper divisors (206774870348).

213434405152 is an equidigital number, since it uses as much as digits as its factorization.

213434405152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163348 (or 163340 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 213434405152 its reverse (251504434312), we get a palindrome (464938839464).

The spelling of 213434405152 in words is "two hundred thirteen billion, four hundred thirty-four million, four hundred five thousand, one hundred fifty-two".