30431402142 has 16 divisors (see below), whose sum is σ = 60871099152. Its totient is φ = 10142418240.

The previous prime is 30431402129. The next prime is 30431402171. The reversal of 30431402142 is 24120413403.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 297409 + ... + 386412.

It is an arithmetic number, because the mean of its divisors is an integer number (3804443697).

Almost surely, 2^30431402142 is an apocalyptic number.

30431402142 is an abundant number, since it is smaller than the sum of its proper divisors (30439697010).

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

30431402142 is a wasteful number, since it uses less digits than its factorization.

30431402142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691243.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 30431402142 its reverse (24120413403), we get a palindrome (54551815545).

The spelling of 30431402142 in words is "thirty billion, four hundred thirty-one million, four hundred two thousand, one hundred forty-two".