31301332220130 has 96 divisors (see below), whose sum is σ = 87419419568640. Its totient is φ = 7152034982400.

The previous prime is 31301332220083. The next prime is 31301332220173. The reversal of 31301332220130 is 3102223310313.

It is a self number, because there is not a number n which added to its sum of digits gives 31301332220130.

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, 316431 + ... + 7918509.

It is an arithmetic number, because the mean of its divisors is an integer number (910618953840).

Almost surely, 2^{31301332220130} is an apocalyptic number.

31301332220130 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 31301332220130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43709709784320).

31301332220130 is an abundant number, since it is smaller than the sum of its proper divisors (56118087348510).

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

31301332220130 is a wasteful number, since it uses less digits than its factorization.

31301332220130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7604904 (or 7604897 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31301332220130 its reverse (3102223310313), we get a palindrome (34403555530443).

The spelling of 31301332220130 in words is "thirty-one trillion, three hundred one billion, three hundred thirty-two million, two hundred twenty thousand, one hundred thirty".