30131432442 has 12 divisors (see below), whose sum is σ = 65284770330. Its totient is φ = 10043810808.

The previous prime is 30131432411. The next prime is 30131432447. The reversal of 30131432442 is 24423413103.

30131432442 is a `hidden beast` number, since 301 + 31 + 4 + 324 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29925194121 + 206238321 = 172989^2 + 14361^2 .

It is not an unprimeable number, because it can be changed into a prime (30131432447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 836984217 + ... + 836984252.

Almost surely, 2^30131432442 is an apocalyptic number.

30131432442 is an abundant number, since it is smaller than the sum of its proper divisors (35153337888).

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

30131432442 is a wasteful number, since it uses less digits than its factorization.

30131432442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673968477 (or 1673968474 counting only the distinct ones).

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

Adding to 30131432442 its reverse (24423413103), we get a palindrome (54554845545).

The spelling of 30131432442 in words is "thirty billion, one hundred thirty-one million, four hundred thirty-two thousand, four hundred forty-two".