31250130532 has 12 divisors (see below), whose sum is σ = 56573512380. Its totient is φ = 15086269856.

The previous prime is 31250130523. The next prime is 31250130539. The reversal of 31250130532 is 23503105213.

It can be written as a sum of positive squares in 2 ways, for example, as 8562541156 + 22687589376 = 92534^2 + 150624^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31250130497 and 31250130506.

It is not an unprimeable number, because it can be changed into a prime (31250130539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134698723 + ... + 134698954.

It is an arithmetic number, because the mean of its divisors is an integer number (4714459365).

Almost surely, 2^31250130532 is an apocalyptic number.

It is an amenable number.

31250130532 is a deficient number, since it is larger than the sum of its proper divisors (25323381848).

31250130532 is a wasteful number, since it uses less digits than its factorization.

31250130532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269397710 (or 269397708 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 31250130532 its reverse (23503105213), we get a palindrome (54753235745).

The spelling of 31250130532 in words is "thirty-one billion, two hundred fifty million, one hundred thirty thousand, five hundred thirty-two".