31430444214 has 32 divisors (see below), whose sum is σ = 71259310080. Its totient is φ = 9161910432.

The previous prime is 31430444147. The next prime is 31430444231. The reversal of 31430444214 is 41244403413.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 10602582 + ... + 10605545.

It is an arithmetic number, because the mean of its divisors is an integer number (2226853440).

Almost surely, 2^31430444214 is an apocalyptic number.

31430444214 is an abundant number, since it is smaller than the sum of its proper divisors (39828865866).

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

31430444214 is a wasteful number, since it uses less digits than its factorization.

31430444214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21208164.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 31430444214 its reverse (41244403413), we get a palindrome (72674847627).

The spelling of 31430444214 in words is "thirty-one billion, four hundred thirty million, four hundred forty-four thousand, two hundred fourteen".