20442401402231 has 8 divisors (see below), whose sum is σ = 20556733852080. Its totient is φ = 20328070387072.

The previous prime is 20442401402219. The next prime is 20442401402251. The reversal of 20442401402231 is 13220410424402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20442401402231 - 2⁶ = 20442401402167 is a prime.

It is a super-2 number, since 2×20442401402231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20442401402194 and 20442401402203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442401402201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42483221 + ... + 42961713.

It is an arithmetic number, because the mean of its divisors is an integer number (2569591731510).

Almost surely, 2^{20442401402231} is an apocalyptic number.

20442401402231 is a deficient number, since it is larger than the sum of its proper divisors (114332449849).

20442401402231 is a wasteful number, since it uses less digits than its factorization.

20442401402231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717345.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 20442401402231 its reverse (13220410424402), we get a palindrome (33662811826633).

The spelling of 20442401402231 in words is "twenty trillion, four hundred forty-two billion, four hundred one million, four hundred two thousand, two hundred thirty-one".