20130233402220 has 24 divisors (see below), whose sum is σ = 56364653526384. Its totient is φ = 5368062240576.

The previous prime is 20130233402197. The next prime is 20130233402261. The reversal of 20130233402220 is 2220433203102.

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, 167751944959 + ... + 167751945078.

It is an arithmetic number, because the mean of its divisors is an integer number (2348527230266).

Almost surely, 2^{20130233402220} is an apocalyptic number.

20130233402220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20130233402220 is an abundant number, since it is smaller than the sum of its proper divisors (36234420124164).

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

20130233402220 is a wasteful number, since it uses less digits than its factorization.

20130233402220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335503890049 (or 335503890047 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20130233402220 its reverse (2220433203102), we get a palindrome (22350666605322).

The spelling of 20130233402220 in words is "twenty trillion, one hundred thirty billion, two hundred thirty-three million, four hundred two thousand, two hundred twenty".