31430233234 has 16 divisors (see below), whose sum is σ = 48892711320. Its totient is φ = 15135366400.

The previous prime is 31430233229. The next prime is 31430233243. The reversal of 31430233234 is 43233203413.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31257179209 + 173054025 = 176797^2 + 13155^2 .

It is a super-2 number, since 2×31430233234² (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 7 ways as a sum of consecutive naturals, for example, 652429 + ... + 698944.

Almost surely, 2^31430233234 is an apocalyptic number.

31430233234 is a deficient number, since it is larger than the sum of its proper divisors (17462478086).

31430233234 is a wasteful number, since it uses less digits than its factorization.

31430233234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351805.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 31430233234 its reverse (43233203413), we get a palindrome (74663436647).

The spelling of 31430233234 in words is "thirty-one billion, four hundred thirty million, two hundred thirty-three thousand, two hundred thirty-four".