31130020302 has 8 divisors (see below), whose sum is σ = 62260040616. Its totient is φ = 10376673432.

The previous prime is 31130020297. The next prime is 31130020307. The reversal of 31130020302 is 20302003113.

It is an interprime number because it is at equal distance from previous prime (31130020297) and next prime (31130020307).

It is a sphenic number, since it is the product of 3 distinct primes.

31130020302 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31130020307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2594168353 + ... + 2594168364.

It is an arithmetic number, because the mean of its divisors is an integer number (7782505077).

Almost surely, 2^31130020302 is an apocalyptic number.

31130020302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31130020302 is a wasteful number, since it uses less digits than its factorization.

31130020302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5188336722.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31130020302 its reverse (20302003113), we get a palindrome (51432023415).

The spelling of 31130020302 in words is "thirty-one billion, one hundred thirty million, twenty thousand, three hundred two".