31201504243130 has 16 divisors (see below), whose sum is σ = 60482915917704. Its totient is φ = 11520555412800.

The previous prime is 31201504243123. The next prime is 31201504243153. The reversal of 31201504243130 is 3134240510213.

It can be written as a sum of positive squares in 4 ways, for example, as 9240949451449 + 21960554791681 = 3039893^2 + 4686209^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31201504243093 and 31201504243102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120005785421 + ... + 120005785680.

Almost surely, 2^{31201504243130} is an apocalyptic number.

31201504243130 is a deficient number, since it is larger than the sum of its proper divisors (29281411674574).

31201504243130 is a wasteful number, since it uses less digits than its factorization.

31201504243130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240011571121.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 31201504243130 its reverse (3134240510213), we get a palindrome (34335744753343).

The spelling of 31201504243130 in words is "thirty-one trillion, two hundred one billion, five hundred four million, two hundred forty-three thousand, one hundred thirty".