213103231033 has 32 divisors (see below), whose sum is σ = 286798786560. Its totient is φ = 153357610560.

The previous prime is 213103231031. The next prime is 213103231063. The reversal of 213103231033 is 330132301312.

It is not a de Polignac number, because 213103231033 - 2¹ = 213103231031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213103230995 and 213103231013.

It is not an unprimeable number, because it can be changed into a prime (213103231031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2023285 + ... + 2126002.

It is an arithmetic number, because the mean of its divisors is an integer number (8962462080).

Almost surely, 2^213103231033 is an apocalyptic number.

213103231033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

213103231033 is a deficient number, since it is larger than the sum of its proper divisors (73695555527).

213103231033 is a wasteful number, since it uses less digits than its factorization.

213103231033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4149357.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 213103231033 its reverse (330132301312), we get a palindrome (543235532345).

The spelling of 213103231033 in words is "two hundred thirteen billion, one hundred three million, two hundred thirty-one thousand, thirty-three".