31300243444 has 6 divisors (see below), whose sum is σ = 54775426034. Its totient is φ = 15650121720.

The previous prime is 31300243423. The next prime is 31300243451. The reversal of 31300243444 is 44434200313.

It can be written as a sum of positive squares in only one way, i.e., 24267408400 + 7032835044 = 155780^2 + 83862^2 .

It is a super-2 number, since 2×31300243444² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3912530427 + ... + 3912530434.

Almost surely, 2^31300243444 is an apocalyptic number.

It is an amenable number.

31300243444 is a deficient number, since it is larger than the sum of its proper divisors (23475182590).

31300243444 is a wasteful number, since it uses less digits than its factorization.

31300243444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7825060865 (or 7825060863 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 31300243444 its reverse (44434200313), we get a palindrome (75734443757).

The spelling of 31300243444 in words is "thirty-one billion, three hundred million, two hundred forty-three thousand, four hundred forty-four".