30131432225 has 6 divisors (see below), whose sum is σ = 37362975990. Its totient is φ = 24105145760.

The previous prime is 30131432167. The next prime is 30131432237. The reversal of 30131432225 is 52223413103.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5935007521 + 24196424704 = 77039^2 + 155552^2 .

It is not a de Polignac number, because 30131432225 - 2⁶ = 30131432161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30131432194 and 30131432203.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 602628620 + ... + 602628669.

It is an arithmetic number, because the mean of its divisors is an integer number (6227162665).

Almost surely, 2^30131432225 is an apocalyptic number.

It is an amenable number.

30131432225 is a deficient number, since it is larger than the sum of its proper divisors (7231543765).

30131432225 is a wasteful number, since it uses less digits than its factorization.

30131432225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205257299 (or 1205257294 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 30131432225 its reverse (52223413103), we get a palindrome (82354845328).

The spelling of 30131432225 in words is "thirty billion, one hundred thirty-one million, four hundred thirty-two thousand, two hundred twenty-five".