31130331130 has 16 divisors (see below), whose sum is σ = 57842164224. Its totient is φ = 12050450640.

The previous prime is 31130331109. The next prime is 31130331149. The reversal of 31130331130 is 3113303113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31130331098 and 31130331107.

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, 50209902 + ... + 50210521.

It is an arithmetic number, because the mean of its divisors is an integer number (3615135264).

Almost surely, 2^31130331130 is an apocalyptic number.

31130331130 is a deficient number, since it is larger than the sum of its proper divisors (26711833094).

31130331130 is a wasteful number, since it uses less digits than its factorization.

31130331130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100420461.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 31130331130 its reverse (3113303113), we get a palindrome (34243634243).

The spelling of 31130331130 in words is "thirty-one billion, one hundred thirty million, three hundred thirty-one thousand, one hundred thirty".