31430442230 has 16 divisors (see below), whose sum is σ = 61717959504. Its totient is φ = 11429251680.

The previous prime is 31430442217. The next prime is 31430442259. The reversal of 31430442230 is 3224403413.

It is a self number, because there is not a number n which added to its sum of digits gives 31430442230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142865537 + ... + 142865756.

It is an arithmetic number, because the mean of its divisors is an integer number (3857372469).

Almost surely, 2^31430442230 is an apocalyptic number.

31430442230 is a deficient number, since it is larger than the sum of its proper divisors (30287517274).

31430442230 is a wasteful number, since it uses less digits than its factorization.

31430442230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285731311.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 31430442230 its reverse (3224403413), we get a palindrome (34654845643).

The spelling of 31430442230 in words is "thirty-one billion, four hundred thirty million, four hundred forty-two thousand, two hundred thirty".