213123031330 has 16 divisors (see below), whose sum is σ = 418496134464. Its totient is φ = 77499284080.

The previous prime is 213123031313. The next prime is 213123031337. The reversal of 213123031330 is 33130321312.

213123031330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (213123031337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 968740942 + ... + 968741161.

It is an arithmetic number, because the mean of its divisors is an integer number (26156008404).

Almost surely, 2^213123031330 is an apocalyptic number.

213123031330 is a deficient number, since it is larger than the sum of its proper divisors (205373103134).

213123031330 is a wasteful number, since it uses less digits than its factorization.

213123031330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937482121.

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

Adding to 213123031330 its reverse (33130321312), we get a palindrome (246253352642).

The spelling of 213123031330 in words is "two hundred thirteen billion, one hundred twenty-three million, thirty-one thousand, three hundred thirty".