31130230104 has 24 divisors (see below), whose sum is σ = 84311040060. Its totient is φ = 10376743344.

The previous prime is 31130230099. The next prime is 31130230111. The reversal of 31130230104 is 40103203113.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-4 number, since 4×31130230104⁴ (a number of 43 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 5 ways as a sum of consecutive naturals, for example, 216182082 + ... + 216182225.

Almost surely, 2^31130230104 is an apocalyptic number.

It is an amenable number.

31130230104 is an abundant number, since it is smaller than the sum of its proper divisors (53180809956).

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

31130230104 is a wasteful number, since it uses less digits than its factorization.

31130230104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432364319 (or 432364312 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31130230104 its reverse (40103203113), we get a palindrome (71233433217).

The spelling of 31130230104 in words is "thirty-one billion, one hundred thirty million, two hundred thirty thousand, one hundred four".