213123101033 has 4 divisors (see below), whose sum is σ = 219998039808. Its totient is φ = 206248162260.

The previous prime is 213123101029. The next prime is 213123101047. The reversal of 213123101033 is 330101321312.

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 not a de Polignac number, because 213123101033 - 2² = 213123101029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213123100996 and 213123101014.

It is not an unprimeable number, because it can be changed into a prime (213123101083) 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, 3437469341 + ... + 3437469402.

It is an arithmetic number, because the mean of its divisors is an integer number (54999509952).

Almost surely, 2^213123101033 is an apocalyptic number.

It is an amenable number.

213123101033 is a deficient number, since it is larger than the sum of its proper divisors (6874938775).

213123101033 is an equidigital number, since it uses as much as digits as its factorization.

213123101033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6874938774.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 213123101033 its reverse (330101321312), we get a palindrome (543224422345).

The spelling of 213123101033 in words is "two hundred thirteen billion, one hundred twenty-three million, one hundred one thousand, thirty-three".