3211312123 has 4 divisors (see below), whose sum is σ = 3235826088. Its totient is φ = 3186798160.

The previous prime is 3211312099. The next prime is 3211312157. The reversal of 3211312123 is 3212131123.

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

It is a cyclic number.

It is not a de Polignac number, because 3211312123 - 2²¹ = 3209214971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3211312123.

It is not an unprimeable number, because it can be changed into a prime (3211312163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12256786 + ... + 12257047.

It is an arithmetic number, because the mean of its divisors is an integer number (808956522).

Almost surely, 2^3211312123 is an apocalyptic number.

3211312123 is a deficient number, since it is larger than the sum of its proper divisors (24513965).

3211312123 is a wasteful number, since it uses less digits than its factorization.

3211312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24513964.

The product of its digits is 216, while the sum is 19.

The square root of 3211312123 is about 56668.4402732244. The cubic root of 3211312123 is about 1475.3469830815.

Adding to 3211312123 its reverse (3212131123), we get a palindrome (6423443246).

The spelling of 3211312123 in words is "three billion, two hundred eleven million, three hundred twelve thousand, one hundred twenty-three".