31430144012 has 12 divisors (see below), whose sum is σ = 55108327176. Its totient is φ = 15684907680.

The previous prime is 31430143981. The next prime is 31430144021. The reversal of 31430144012 is 21044103413.

It is a super-2 number, since 2×31430144012² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7538738 + ... + 7542905.

It is an arithmetic number, because the mean of its divisors is an integer number (4592360598).

Almost surely, 2^31430144012 is an apocalyptic number.

It is an amenable number.

31430144012 is a deficient number, since it is larger than the sum of its proper divisors (23678183164).

31430144012 is a wasteful number, since it uses less digits than its factorization.

31430144012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15082168 (or 15082166 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31430144012 its reverse (21044103413), we get a palindrome (52474247425).

The spelling of 31430144012 in words is "thirty-one billion, four hundred thirty million, one hundred forty-four thousand, twelve".