331134420032220 has 72 divisors (see below), whose sum is σ = 1078552110971664. Its totient is φ = 75687867435264.

The previous prime is 331134420032189. The next prime is 331134420032233. The reversal of 331134420032220 is 22230024431133.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56315374617 + ... + 56315380496.

It is an arithmetic number, because the mean of its divisors is an integer number (14979890430162).

Almost surely, 2^{331134420032220} is an apocalyptic number.

331134420032220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331134420032220 is an abundant number, since it is smaller than the sum of its proper divisors (747417690939444).

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

331134420032220 is a wasteful number, since it uses less digits than its factorization.

331134420032220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112630755139 (or 112630755130 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 331134420032220 its reverse (22230024431133), we get a palindrome (353364444463353).

The spelling of 331134420032220 in words is "three hundred thirty-one trillion, one hundred thirty-four billion, four hundred twenty million, thirty-two thousand, two hundred twenty".