423001240511 has 4 divisors (see below), whose sum is σ = 423620569512. Its totient is φ = 422381911512.

The previous prime is 423001240499. The next prime is 423001240513. The reversal of 423001240511 is 115042100324.

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-423001240511 is a prime.

It is a super-2 number, since 2×423001240511² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423001240513) 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, 309663476 + ... + 309664841.

It is an arithmetic number, because the mean of its divisors is an integer number (105905142378).

Almost surely, 2^423001240511 is an apocalyptic number.

423001240511 is a deficient number, since it is larger than the sum of its proper divisors (619329001).

423001240511 is an equidigital number, since it uses as much as digits as its factorization.

423001240511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619329000.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 423001240511 its reverse (115042100324), we get a palindrome (538043340835).

The spelling of 423001240511 in words is "four hundred twenty-three billion, one million, two hundred forty thousand, five hundred eleven".