4431142031 has 4 divisors (see below), whose sum is σ = 4434180600. Its totient is φ = 4428103464.

The previous prime is 4431142013. The next prime is 4431142049. The reversal of 4431142031 is 1302411344.

4431142031 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (4431142013) and next prime (4431142049).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4431142031 is a prime.

It is a super-2 number, since 2×4431142031² = 39270039397789609922, 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 = 4431141988 and 4431142006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431142231) 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, 1517096 + ... + 1520013.

It is an arithmetic number, because the mean of its divisors is an integer number (1108545150).

Almost surely, 2^4431142031 is an apocalyptic number.

4431142031 is a deficient number, since it is larger than the sum of its proper divisors (3038569).

4431142031 is a wasteful number, since it uses less digits than its factorization.

4431142031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038568.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 4431142031 is about 66566.8238013502. The cubic root of 4431142031 is about 1642.4994150029.

Adding to 4431142031 its reverse (1302411344), we get a palindrome (5733553375).

The spelling of 4431142031 in words is "four billion, four hundred thirty-one million, one hundred forty-two thousand, thirty-one".