213133122328 has 32 divisors (see below), whose sum is σ = 459080249760. Its totient is φ = 90869483520.

The previous prime is 213133122289. The next prime is 213133122329. The reversal of 213133122328 is 823221331312.

It is a self number, because there is not a number n which added to its sum of digits gives 213133122328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213133122329) 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, 9849163 + ... + 9870778.

It is an arithmetic number, because the mean of its divisors is an integer number (14346257805).

Almost surely, 2^213133122328 is an apocalyptic number.

213133122328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213133122328 is an abundant number, since it is smaller than the sum of its proper divisors (245947127432).

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

213133122328 is a wasteful number, since it uses less digits than its factorization.

213133122328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19720147 (or 19720143 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The spelling of 213133122328 in words is "two hundred thirteen billion, one hundred thirty-three million, one hundred twenty-two thousand, three hundred twenty-eight".