31122030320130 has 64 divisors (see below), whose sum is σ = 79135725876480. Its totient is φ = 7806164588544.

The previous prime is 31122030320083. The next prime is 31122030320179. The reversal of 31122030320130 is 3102303022113.

It is a junction number, because it is equal to n+sod(n) for n = 31122030320097 and 31122030320106.

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, 18142614 + ... + 19783793.

It is an arithmetic number, because the mean of its divisors is an integer number (1236495716820).

Almost surely, 2^{31122030320130} is an apocalyptic number.

31122030320130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31122030320130 is an abundant number, since it is smaller than the sum of its proper divisors (48013695556350).

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

31122030320130 is a wasteful number, since it uses less digits than its factorization.

31122030320130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37928043.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31122030320130 its reverse (3102303022113), we get a palindrome (34224333342243).

The spelling of 31122030320130 in words is "thirty-one trillion, one hundred twenty-two billion, thirty million, three hundred twenty thousand, one hundred thirty".