3213124421 has 4 divisors (see below), whose sum is σ = 3460287852. Its totient is φ = 2965960992.

The previous prime is 3213124399. The next prime is 3213124429. The reversal of 3213124421 is 1244213123.

3213124421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1000456900 + 2212667521 = 31630^2 + 47039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3213124421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213124429) 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, 123581696 + ... + 123581721.

It is an arithmetic number, because the mean of its divisors is an integer number (865071963).

Almost surely, 2^3213124421 is an apocalyptic number.

It is an amenable number.

3213124421 is a deficient number, since it is larger than the sum of its proper divisors (247163431).

3213124421 is a wasteful number, since it uses less digits than its factorization.

3213124421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247163430.

The product of its digits is 1152, while the sum is 23.

The square root of 3213124421 is about 56684.4283820522. The cubic root of 3213124421 is about 1475.6244673272.

Adding to 3213124421 its reverse (1244213123), we get a palindrome (4457337544).

The spelling of 3213124421 in words is "three billion, two hundred thirteen million, one hundred twenty-four thousand, four hundred twenty-one".