31130213330 has 32 divisors (see below), whose sum is σ = 58297466880. Its totient is φ = 11955504960.

The previous prime is 31130213273. The next prime is 31130213347. The reversal of 31130213330 is 3331203113.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355985 + ... + 434724.

It is an arithmetic number, because the mean of its divisors is an integer number (1821795840).

Almost surely, 2^31130213330 is an apocalyptic number.

31130213330 is a deficient number, since it is larger than the sum of its proper divisors (27167253550).

31130213330 is a wasteful number, since it uses less digits than its factorization.

31130213330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790874.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31130213330 its reverse (3331203113), we get a palindrome (34461416443).

The spelling of 31130213330 in words is "thirty-one billion, one hundred thirty million, two hundred thirteen thousand, three hundred thirty".