3143031431 has 4 divisors (see below), whose sum is σ = 3143676600. Its totient is φ = 3142386264.

The previous prime is 3143031427. The next prime is 3143031473. The reversal of 3143031431 is 1341303413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1341303413 = 27749 ⋅48337.

It is a cyclic number.

It is not a de Polignac number, because 3143031431 - 2² = 3143031427 is a prime.

It is a super-2 number, since 2×3143031431² = 19757293152507815522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3143031397 and 3143031406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143031631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315221 + ... + 325038.

It is an arithmetic number, because the mean of its divisors is an integer number (785919150).

Almost surely, 2^3143031431 is an apocalyptic number.

3143031431 is a deficient number, since it is larger than the sum of its proper divisors (645169).

3143031431 is an equidigital number, since it uses as much as digits as its factorization.

3143031431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645168.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 3143031431 is about 56062.7454821827. The cubic root of 3143031431 is about 1464.8154366072.

Adding to 3143031431 its reverse (1341303413), we get a palindrome (4484334844).

The spelling of 3143031431 in words is "three billion, one hundred forty-three million, thirty-one thousand, four hundred thirty-one".