31444403130 has 48 divisors (see below), whose sum is σ = 93434799744. Its totient is φ = 7187292000.

The previous prime is 31444403119. The next prime is 31444403131. The reversal of 31444403130 is 3130444413.

It is a junction number, because it is equal to n+sod(n) for n = 31444403094 and 31444403103.

It is not an unprimeable number, because it can be changed into a prime (31444403131) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 24955246 + ... + 24956505.

It is an arithmetic number, because the mean of its divisors is an integer number (1946558328).

Almost surely, 2^31444403130 is an apocalyptic number.

31444403130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31444403130 is an abundant number, since it is smaller than the sum of its proper divisors (61990396614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31444403130 is a wasteful number, since it uses less digits than its factorization.

31444403130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49911771 (or 49911768 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 31444403130 its reverse (3130444413), we get a palindrome (34574847543).

The spelling of 31444403130 in words is "thirty-one billion, four hundred forty-four million, four hundred three thousand, one hundred thirty".