3213656303 has 12 divisors (see below), whose sum is σ = 3804088344. Its totient is φ = 2696773200.

The previous prime is 3213656291. The next prime is 3213656311. The reversal of 3213656303 is 3036563123.

It is not a de Polignac number, because 3213656303 - 2⁶ = 3213656239 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 3213656303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213656603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1019933 + ... + 1023078.

It is an arithmetic number, because the mean of its divisors is an integer number (317007362).

Almost surely, 2^3213656303 is an apocalyptic number.

3213656303 is a deficient number, since it is larger than the sum of its proper divisors (590432041).

3213656303 is a wasteful number, since it uses less digits than its factorization.

3213656303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043046 (or 2043035 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 32.

The square root of 3213656303 is about 56689.1197938370. The cubic root of 3213656303 is about 1475.7058849431.

The spelling of 3213656303 in words is "three billion, two hundred thirteen million, six hundred fifty-six thousand, three hundred three".