20030231222120 has 32 divisors (see below), whose sum is σ = 51506308857600. Its totient is φ = 6867507847488.

The previous prime is 20030231222117. The next prime is 20030231222167. The reversal of 20030231222120 is 2122213203002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20030231222092 and 20030231222101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35768269760 + ... + 35768270319.

It is an arithmetic number, because the mean of its divisors is an integer number (1609572151800).

Almost surely, 2^{20030231222120} is an apocalyptic number.

20030231222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20030231222120 is an abundant number, since it is smaller than the sum of its proper divisors (31476077635480).

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

20030231222120 is a wasteful number, since it uses less digits than its factorization.

20030231222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71536540097 (or 71536540093 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20030231222120 its reverse (2122213203002), we get a palindrome (22152444425122).

The spelling of 20030231222120 in words is "twenty trillion, thirty billion, two hundred thirty-one million, two hundred twenty-two thousand, one hundred twenty".