213231413033 has 4 divisors (see below), whose sum is σ = 213478495488. Its totient is φ = 212984330580.

The previous prime is 213231412951. The next prime is 213231413047. The reversal of 213231413033 is 330314132312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213231413033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213231412993 and 213231413011.

It is not an unprimeable number, because it can be changed into a prime (213231413533) 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, 123539933 + ... + 123541658.

It is an arithmetic number, because the mean of its divisors is an integer number (53369623872).

Almost surely, 2^213231413033 is an apocalyptic number.

It is an amenable number.

213231413033 is a deficient number, since it is larger than the sum of its proper divisors (247082455).

213231413033 is an equidigital number, since it uses as much as digits as its factorization.

213231413033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247082454.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 213231413033 its reverse (330314132312), we get a palindrome (543545545345).

The spelling of 213231413033 in words is "two hundred thirteen billion, two hundred thirty-one million, four hundred thirteen thousand, thirty-three".