4001387229123 has 16 divisors (see below), whose sum is σ = 5378176956672. Its totient is φ = 2646144900000.

The previous prime is 4001387229071. The next prime is 4001387229127. The reversal of 4001387229123 is 3219227831004.

It is not a de Polignac number, because 4001387229123 - 2²⁸ = 4001118793667 is a prime.

It is a super-2 number, since 2×4001387229123² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4001387229127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5982793 + ... + 6617898.

It is an arithmetic number, because the mean of its divisors is an integer number (336136059792).

Almost surely, 2^{4001387229123} is an apocalyptic number.

4001387229123 is a deficient number, since it is larger than the sum of its proper divisors (1376789727549).

4001387229123 is a wasteful number, since it uses less digits than its factorization.

4001387229123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12601546.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 4001387229123 in words is "four trillion, one billion, three hundred eighty-seven million, two hundred twenty-nine thousand, one hundred twenty-three".