3213123120 has 80 divisors (see below), whose sum is σ = 11067431520. Its totient is φ = 856832256.

The previous prime is 3213123119. The next prime is 3213123139. The reversal of 3213123120 is 213213123.

3213123120 is a `hidden beast` number, since 321 + 31 + 2 + 312 + 0 = 666.

3213123120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3213123093 and 3213123102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741619 + ... + 745938.

It is an arithmetic number, because the mean of its divisors is an integer number (138342894).

Almost surely, 2^3213123120 is an apocalyptic number.

3213123120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3213123120 is an abundant number, since it is smaller than the sum of its proper divisors (7854308400).

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

3213123120 is a wasteful number, since it uses less digits than its factorization.

3213123120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487579 (or 1487567 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3213123120 is about 56684.4169062362. The cubic root of 3213123120 is about 1475.6242681661.

Adding to 3213123120 its reverse (213213123), we get a palindrome (3426336243).

The spelling of 3213123120 in words is "three billion, two hundred thirteen million, one hundred twenty-three thousand, one hundred twenty".