240403122011 has 4 divisors (see below), whose sum is σ = 258895669872. Its totient is φ = 221910574152.

The previous prime is 240403121993. The next prime is 240403122059. The reversal of 240403122011 is 110221304042.

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 240403122011 - 2³⁴ = 223223252827 is a prime.

It is a super-2 number, since 2×240403122011² (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 (240403122061) 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, 9246273911 + ... + 9246273936.

It is an arithmetic number, because the mean of its divisors is an integer number (64723917468).

Almost surely, 2^240403122011 is an apocalyptic number.

240403122011 is a deficient number, since it is larger than the sum of its proper divisors (18492547861).

240403122011 is a wasteful number, since it uses less digits than its factorization.

240403122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18492547860.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 240403122011 its reverse (110221304042), we get a palindrome (350624426053).

The spelling of 240403122011 in words is "two hundred forty billion, four hundred three million, one hundred twenty-two thousand, eleven".