3213121323 has 8 divisors (see below), whose sum is σ = 4431891600. Its totient is φ = 2068215968.

The previous prime is 3213121313. The next prime is 3213121339. The reversal of 3213121323 is 3231213123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3213121323 - 2⁵ = 3213121291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3213121323.

It is not an unprimeable number, because it can be changed into a prime (3213121313) 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, 18466128 + ... + 18466301.

It is an arithmetic number, because the mean of its divisors is an integer number (553986450).

Almost surely, 2^3213121323 is an apocalyptic number.

3213121323 is a deficient number, since it is larger than the sum of its proper divisors (1218770277).

3213121323 is a wasteful number, since it uses less digits than its factorization.

3213121323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36932461.

The product of its digits is 648, while the sum is 21.

The square root of 3213121323 is about 56684.4010553168. The cubic root of 3213121323 is about 1475.6239930758.

Adding to 3213121323 its reverse (3231213123), we get a palindrome (6444334446).

The spelling of 3213121323 in words is "three billion, two hundred thirteen million, one hundred twenty-one thousand, three hundred twenty-three".