31234403444 has 6 divisors (see below), whose sum is σ = 54660206034. Its totient is φ = 15617201720.

The previous prime is 31234403437. The next prime is 31234403483. The reversal of 31234403444 is 44430443213.

It can be written as a sum of positive squares in only one way, i.e., 25724310544 + 5510092900 = 160388^2 + 74230^2 .

It is a super-2 number, since 2×31234403444² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31234403444.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3904300427 + ... + 3904300434.

It is an arithmetic number, because the mean of its divisors is an integer number (9110034339).

Almost surely, 2^31234403444 is an apocalyptic number.

It is an amenable number.

31234403444 is a deficient number, since it is larger than the sum of its proper divisors (23425802590).

31234403444 is a wasteful number, since it uses less digits than its factorization.

31234403444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7808600865 (or 7808600863 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 31234403444 its reverse (44430443213), we get a palindrome (75664846657).

The spelling of 31234403444 in words is "thirty-one billion, two hundred thirty-four million, four hundred three thousand, four hundred forty-four".