31053443 has 2 divisors, whose sum is σ = 31053444. Its totient is φ = 31053442.

The previous prime is 31053437. The next prime is 31053479. The reversal of 31053443 is 34435013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31053443 - 2¹⁰ = 31052419 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31053343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15526721 + 15526722.

It is an arithmetic number, because the mean of its divisors is an integer number (15526722).

Almost surely, 2^31053443 is an apocalyptic number.

31053443 is a deficient number, since it is larger than the sum of its proper divisors (1).

31053443 is an equidigital number, since it uses as much as digits as its factorization.

31053443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 31053443 is about 5572.5616192197. The cubic root of 31053443 is about 314.3184828977.

Adding to 31053443 its reverse (34435013), we get a palindrome (65488456).

The spelling of 31053443 in words is "thirty-one million, fifty-three thousand, four hundred forty-three".