423201421242100 has 72 divisors (see below), whose sum is σ = 920193188163480. Its totient is φ = 168940303134720.

The previous prime is 423201421242053. The next prime is 423201421242109. The reversal of 423201421242100 is 1242124102324.

It can be written as a sum of positive squares in 12 ways, for example, as 8166495013264 + 415034926228836 = 2857708^2 + 20372406^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423201421242109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1191747772 + ... + 1192102828.

It is an arithmetic number, because the mean of its divisors is an integer number (12780460946715).

Almost surely, 2^{423201421242100} is an apocalyptic number.

It is an amenable number.

423201421242100 is an abundant number, since it is smaller than the sum of its proper divisors (496991766921380).

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

423201421242100 is a wasteful number, since it uses less digits than its factorization.

423201421242100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378997 (or 378990 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 423201421242100 its reverse (1242124102324), we get a palindrome (424443545344424).

The spelling of 423201421242100 in words is "four hundred twenty-three trillion, two hundred one billion, four hundred twenty-one million, two hundred forty-two thousand, one hundred".