31430233340 has 48 divisors (see below), whose sum is σ = 72018223200. Its totient is φ = 11426887680.

The previous prime is 31430233339. The next prime is 31430233399. The reversal of 31430233340 is 4333203413.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 1407704 + ... + 1429856.

It is an arithmetic number, because the mean of its divisors is an integer number (1500379650).

Almost surely, 2^31430233340 is an apocalyptic number.

It is an amenable number.

31430233340 is an abundant number, since it is smaller than the sum of its proper divisors (40587989860).

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

31430233340 is a wasteful number, since it uses less digits than its factorization.

31430233340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28622 (or 28620 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 31430233340 its reverse (4333203413), we get a palindrome (35763436753).

The spelling of 31430233340 in words is "thirty-one billion, four hundred thirty million, two hundred thirty-three thousand, three hundred forty".