4001234233505 has 16 divisors (see below), whose sum is σ = 4844405919360. Its totient is φ = 3172450655232.

The previous prime is 4001234233501. The next prime is 4001234233537. The reversal of 4001234233505 is 5053324321004.

It is a cyclic number.

It is not a de Polignac number, because 4001234233505 - 2² = 4001234233501 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4001234233501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4587869 + ... + 5389898.

It is an arithmetic number, because the mean of its divisors is an integer number (302775369960).

Almost surely, 2^{4001234233505} is an apocalyptic number.

It is an amenable number.

4001234233505 is a deficient number, since it is larger than the sum of its proper divisors (843171685855).

4001234233505 is a wasteful number, since it uses less digits than its factorization.

4001234233505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9978488.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 4001234233505 its reverse (5053324321004), we get a palindrome (9054558554509).

The spelling of 4001234233505 in words is "four trillion, one billion, two hundred thirty-four million, two hundred thirty-three thousand, five hundred five".