3122143231 has 4 divisors (see below), whose sum is σ = 3127462632. Its totient is φ = 3116823832.

The previous prime is 3122143217. The next prime is 3122143237. The reversal of 3122143231 is 1323412213.

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 3122143231 - 2¹³ = 3122135039 is a prime.

It is a super-2 number, since 2×3122143231² = 19495556709758238722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122143237) 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, 2658820 + ... + 2659993.

It is an arithmetic number, because the mean of its divisors is an integer number (781865658).

Almost surely, 2^3122143231 is an apocalyptic number.

3122143231 is a deficient number, since it is larger than the sum of its proper divisors (5319401).

3122143231 is an equidigital number, since it uses as much as digits as its factorization.

3122143231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5319400.

The product of its digits is 864, while the sum is 22.

The square root of 3122143231 is about 55876.1418764753. The cubic root of 3122143231 is about 1461.5632269763.

Adding to 3122143231 its reverse (1323412213), we get a palindrome (4445555444).

The spelling of 3122143231 in words is "three billion, one hundred twenty-two million, one hundred forty-three thousand, two hundred thirty-one".