202420220104423 has 16 divisors (see below), whose sum is σ = 209210538229056. Its totient is φ = 195701128945920.

The previous prime is 202420220104409. The next prime is 202420220104447. The reversal of 202420220104423 is 324401022024202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202420220104423 - 2³⁷ = 202282781150951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202420220104391 and 202420220104400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202420220104483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4166686 + ... + 20547547.

It is an arithmetic number, because the mean of its divisors is an integer number (13075658639316).

Almost surely, 2^{202420220104423} is an apocalyptic number.

202420220104423 is a deficient number, since it is larger than the sum of its proper divisors (6790318124633).

202420220104423 is a wasteful number, since it uses less digits than its factorization.

202420220104423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24715674.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 202420220104423 its reverse (324401022024202), we get a palindrome (526821242128625).

The spelling of 202420220104423 in words is "two hundred two trillion, four hundred twenty billion, two hundred twenty million, one hundred four thousand, four hundred twenty-three".