243401040104299 has 32 divisors (see below), whose sum is σ = 319435625525760. Its totient is φ = 179679215001600.

The previous prime is 243401040104273. The next prime is 243401040104371. The reversal of 243401040104299 is 992401040104342.

It is a cyclic number.

It is not a de Polignac number, because 243401040104299 - 2²¹ = 243401038007147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243401040104249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170449729 + ... + 171871789.

It is an arithmetic number, because the mean of its divisors is an integer number (9982363297680).

Almost surely, 2^{243401040104299} is an apocalyptic number.

243401040104299 is a deficient number, since it is larger than the sum of its proper divisors (76034585421461).

243401040104299 is a wasteful number, since it uses less digits than its factorization.

243401040104299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539091.

The product of its (nonzero) digits is 248832, while the sum is 43.

Adding to 243401040104299 its sum of digits (43), we get a palindrome (243401040104342).

The spelling of 243401040104299 in words is "two hundred forty-three trillion, four hundred one billion, forty million, one hundred four thousand, two hundred ninety-nine".