31230244343 has 4 divisors (see below), whose sum is σ = 31232306280. Its totient is φ = 31228182408.

The previous prime is 31230244321. The next prime is 31230244351. The reversal of 31230244343 is 34344203213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31230244343 - 2¹² = 31230240247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230244303) 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, 1008080 + ... + 1038597.

It is an arithmetic number, because the mean of its divisors is an integer number (7808076570).

Almost surely, 2^31230244343 is an apocalyptic number.

31230244343 is a deficient number, since it is larger than the sum of its proper divisors (2061937).

31230244343 is a wasteful number, since it uses less digits than its factorization.

31230244343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061936.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 31230244343 its reverse (34344203213), we get a palindrome (65574447556).

The spelling of 31230244343 in words is "thirty-one billion, two hundred thirty million, two hundred forty-four thousand, three hundred forty-three".