241242193921 has 4 divisors (see below), whose sum is σ = 241643595844. Its totient is φ = 240840792000.

The previous prime is 241242193883. The next prime is 241242193949. The reversal of 241242193921 is 129391242142.

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

It can be written as a sum of positive squares in 2 ways, for example, as 202647626896 + 38594567025 = 450164^2 + 196455^2 .

It is a cyclic number.

It is not a de Polignac number, because 241242193921 - 2⁷ = 241242193793 is a prime.

It is a super-2 number, since 2×241242193921² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (241242197921) 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, 200700060 + ... + 200701261.

It is an arithmetic number, because the mean of its divisors is an integer number (60410898961).

Almost surely, 2^241242193921 is an apocalyptic number.

It is an amenable number.

241242193921 is a deficient number, since it is larger than the sum of its proper divisors (401401923).

241242193921 is an equidigital number, since it uses as much as digits as its factorization.

241242193921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401401922.

The product of its digits is 62208, while the sum is 40.

The spelling of 241242193921 in words is "two hundred forty-one billion, two hundred forty-two million, one hundred ninety-three thousand, nine hundred twenty-one".