31023441 has 12 divisors (see below), whose sum is σ = 45547060. Its totient is φ = 20342880.

The previous prime is 31023437. The next prime is 31023451. The reversal of 31023441 is 14432013.

It can be written as a sum of positive squares in 2 ways, for example, as 7403841 + 23619600 = 2721^2 + 4860^2 .

It is not a de Polignac number, because 31023441 - 2² = 31023437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31023451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27706 + ... + 28803.

Almost surely, 2^31023441 is an apocalyptic number.

It is an amenable number.

31023441 is a deficient number, since it is larger than the sum of its proper divisors (14523619).

31023441 is a wasteful number, since it uses less digits than its factorization.

31023441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56576 (or 56573 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 31023441 is about 5569.8690289808. The cubic root of 31023441 is about 314.2172249716.

Adding to 31023441 its reverse (14432013), we get a palindrome (45455454).

The spelling of 31023441 in words is "thirty-one million, twenty-three thousand, four hundred forty-one".