213231433352 has 32 divisors (see below), whose sum is σ = 457955985600. Its totient is φ = 91178602944.

The previous prime is 213231433351. The next prime is 213231433391. The reversal of 213231433352 is 253334132312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213231433351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4272827 + ... + 4322442.

It is an arithmetic number, because the mean of its divisors is an integer number (14311124550).

Almost surely, 2^213231433352 is an apocalyptic number.

It is an amenable number.

213231433352 is an abundant number, since it is smaller than the sum of its proper divisors (244724552248).

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

213231433352 is a wasteful number, since it uses less digits than its factorization.

213231433352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8595725 (or 8595721 counting only the distinct ones).

The product of its digits is 38880, while the sum is 32.

Adding to 213231433352 its reverse (253334132312), we get a palindrome (466565565664).

The spelling of 213231433352 in words is "two hundred thirteen billion, two hundred thirty-one million, four hundred thirty-three thousand, three hundred fifty-two".