20020123133230 has 64 divisors (see below), whose sum is σ = 39794910640128. Its totient is φ = 7190701464960.

The previous prime is 20020123133209. The next prime is 20020123133239. The reversal of 20020123133230 is 3233132102002.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020123133239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40354564 + ... + 40847656.

It is an arithmetic number, because the mean of its divisors is an integer number (621795478752).

Almost surely, 2^{20020123133230} is an apocalyptic number.

20020123133230 is a deficient number, since it is larger than the sum of its proper divisors (19774787506898).

20020123133230 is a wasteful number, since it uses less digits than its factorization.

20020123133230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497641.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20020123133230 its reverse (3233132102002), we get a palindrome (23253255235232).

The spelling of 20020123133230 in words is "twenty trillion, twenty billion, one hundred twenty-three million, one hundred thirty-three thousand, two hundred thirty".