31430033044340 has 72 divisors (see below), whose sum is σ = 76217749816320. Its totient is φ = 10664917982208.

The previous prime is 31430033044331. The next prime is 31430033044373. The reversal of 31430033044340 is 4344033003413.

It is a junction number, because it is equal to n+sod(n) for n = 31430033044297 and 31430033044306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10612820 + ... + 13247339.

It is an arithmetic number, because the mean of its divisors is an integer number (1058579858560).

Almost surely, 2^{31430033044340} is an apocalyptic number.

It is an amenable number.

31430033044340 is an abundant number, since it is smaller than the sum of its proper divisors (44787716771980).

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

31430033044340 is a wasteful number, since it uses less digits than its factorization.

31430033044340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23860369 (or 23860270 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 31430033044340 its reverse (4344033003413), we get a palindrome (35774066047753).

The spelling of 31430033044340 in words is "thirty-one trillion, four hundred thirty billion, thirty-three million, forty-four thousand, three hundred forty".