31000330130 has 64 divisors (see below), whose sum is σ = 71187545088. Its totient is φ = 9437722560.

The previous prime is 31000330121. The next prime is 31000330159. The reversal of 31000330130 is 3103300013.

It is a super-2 number, since 2×31000330130² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435032 + ... + 501251.

It is an arithmetic number, because the mean of its divisors is an integer number (1112305392).

Almost surely, 2^31000330130 is an apocalyptic number.

31000330130 is an abundant number, since it is smaller than the sum of its proper divisors (40187214958).

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

31000330130 is a wasteful number, since it uses less digits than its factorization.

31000330130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936351.

The product of its (nonzero) digits is 81, while the sum is 14.

Adding to 31000330130 its reverse (3103300013), we get a palindrome (34103630143).

The spelling of 31000330130 in words is "thirty-one billion, three hundred thirty thousand, one hundred thirty".