3123211403 has 16 divisors (see below), whose sum is σ = 3503054016. Its totient is φ = 2765508480.

The previous prime is 3123211397. The next prime is 3123211439. The reversal of 3123211403 is 3041123213.

It is a cyclic number.

It is not a de Polignac number, because 3123211403 - 2⁴ = 3123211387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120211403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11576 + ... + 79877.

It is an arithmetic number, because the mean of its divisors is an integer number (218940876).

Almost surely, 2^3123211403 is an apocalyptic number.

3123211403 is a deficient number, since it is larger than the sum of its proper divisors (379842613).

3123211403 is a wasteful number, since it uses less digits than its factorization.

3123211403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91574.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3123211403 is about 55885.6994498593. The cubic root of 3123211403 is about 1461.7298884425.

Adding to 3123211403 its reverse (3041123213), we get a palindrome (6164334616).

The spelling of 3123211403 in words is "three billion, one hundred twenty-three million, two hundred eleven thousand, four hundred three".