3131225343 has 24 divisors (see below), whose sum is σ = 4767309456. Its totient is φ = 2053252800.

The previous prime is 3131225311. The next prime is 3131225371. The reversal of 3131225343 is 3435221313.

3131225343 is a `hidden beast` number, since 3 + 1 + 3 + 122 + 534 + 3 = 666.

It is not a de Polignac number, because 3131225343 - 2⁵ = 3131225311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131225303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90798 + ... + 120443.

It is an arithmetic number, because the mean of its divisors is an integer number (198637894).

Almost surely, 2^3131225343 is an apocalyptic number.

3131225343 is a deficient number, since it is larger than the sum of its proper divisors (1636084113).

3131225343 is an equidigital number, since it uses as much as digits as its factorization.

3131225343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211317 (or 211305 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 3131225343 is about 55957.3528948609. The cubic root of 3131225343 is about 1462.9790525332.

Adding to 3131225343 its reverse (3435221313), we get a palindrome (6566446656).

The spelling of 3131225343 in words is "three billion, one hundred thirty-one million, two hundred twenty-five thousand, three hundred forty-three".