31300313130 has 96 divisors (see below), whose sum is σ = 86312438784. Its totient is φ = 7842590208.

The previous prime is 31300313129. The next prime is 31300313141. The reversal of 31300313130 is 3131300313.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 911859 + ... + 945561.

It is an arithmetic number, because the mean of its divisors is an integer number (899087904).

Almost surely, 2^31300313130 is an apocalyptic number.

31300313130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31300313130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43156219392).

31300313130 is an abundant number, since it is smaller than the sum of its proper divisors (55012125654).

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

31300313130 is a wasteful number, since it uses less digits than its factorization.

31300313130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34340 (or 34337 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

Adding to 31300313130 its reverse (3131300313), we get a palindrome (34431613443).

The spelling of 31300313130 in words is "thirty-one billion, three hundred million, three hundred thirteen thousand, one hundred thirty".