3201311123 has 4 divisors (see below), whose sum is σ = 3389623560. Its totient is φ = 3012998688.

The previous prime is 3201311117. The next prime is 3201311129. The reversal of 3201311123 is 3211131023.

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

It is an interprime number because it is at equal distance from previous prime (3201311117) and next prime (3201311129).

It is a cyclic number.

It is not a de Polignac number, because 3201311123 - 2⁴ = 3201311107 is a prime.

It is a super-2 number, since 2×3201311123² = 20496785812487042258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 188312419 = 3201311123 / (3 + 2 + 0 + 1 + 3 + 1 + 1 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3201311129) 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, 94156193 + ... + 94156226.

It is an arithmetic number, because the mean of its divisors is an integer number (847405890).

Almost surely, 2^3201311123 is an apocalyptic number.

3201311123 is a deficient number, since it is larger than the sum of its proper divisors (188312437).

3201311123 is a wasteful number, since it uses less digits than its factorization.

3201311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188312436.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3201311123 is about 56580.1301076624. The cubic root of 3201311123 is about 1473.8138310767.

Adding to 3201311123 its reverse (3211131023), we get a palindrome (6412442146).

The spelling of 3201311123 in words is "three billion, two hundred one million, three hundred eleven thousand, one hundred twenty-three".