20423344332402 has 96 divisors (see below), whose sum is σ = 49069949947200. Its totient is φ = 6086786832000.

The previous prime is 20423344332397. The next prime is 20423344332431.

20423344332402 is a `hidden beast` number, since 2 + 0 + 42 + 3 + 344 + 33 + 240 + 2 = 666.

20423344332402 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×20423344332402² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119982349 + ... + 120152447.

It is an arithmetic number, because the mean of its divisors is an integer number (511145311950).

Almost surely, 2^{20423344332402} is an apocalyptic number.

20423344332402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20423344332402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24534974973600).

20423344332402 is an abundant number, since it is smaller than the sum of its proper divisors (28646605614798).

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

20423344332402 is a wasteful number, since it uses less digits than its factorization.

20423344332402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180120 (or 180117 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 36.

It can be divided in two parts, 2042334 and 4332402, that added together give a palindrome (6374736).

The spelling of 20423344332402 in words is "twenty trillion, four hundred twenty-three billion, three hundred forty-four million, three hundred thirty-two thousand, four hundred two".