202101334240423 has 4 divisors (see below), whose sum is σ = 204869845668448. Its totient is φ = 199332822812400.

The previous prime is 202101334240409. The next prime is 202101334240447. The reversal of 202101334240423 is 324042433101202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202101334240423 - 2⁹ = 202101334239911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202101334240483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1384255713903 + ... + 1384255714048.

It is an arithmetic number, because the mean of its divisors is an integer number (51217461417112).

Almost surely, 2^{202101334240423} is an apocalyptic number.

202101334240423 is a deficient number, since it is larger than the sum of its proper divisors (2768511428025).

202101334240423 is an equidigital number, since it uses as much as digits as its factorization.

202101334240423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768511428024.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 202101334240423 its reverse (324042433101202), we get a palindrome (526143767341625).

The spelling of 202101334240423 in words is "two hundred two trillion, one hundred one billion, three hundred thirty-four million, two hundred forty thousand, four hundred twenty-three".