202405001101243 has 4 divisors (see below), whose sum is σ = 204196195801368. Its totient is φ = 200613806401120.

The previous prime is 202405001101229. The next prime is 202405001101279. The reversal of 202405001101243 is 342101100504202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202405001101243 is a prime.

It is a super-2 number, since 2×202405001101243² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202405001101223) 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, 895597349893 + ... + 895597350118.

It is an arithmetic number, because the mean of its divisors is an integer number (51049048950342).

Almost surely, 2^{202405001101243} is an apocalyptic number.

202405001101243 is a deficient number, since it is larger than the sum of its proper divisors (1791194700125).

202405001101243 is a wasteful number, since it uses less digits than its factorization.

202405001101243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791194700124.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 202405001101243 its reverse (342101100504202), we get a palindrome (544506101605445).

The spelling of 202405001101243 in words is "two hundred two trillion, four hundred five billion, one million, one hundred one thousand, two hundred forty-three".