4203138128015 has 16 divisors (see below), whose sum is σ = 5340578443200. Its totient is φ = 3164644308480.

The previous prime is 4203138127949. The next prime is 4203138128029. The reversal of 4203138128015 is 5108218313024.

It is not a de Polignac number, because 4203138128015 - 2⁸ = 4203138127759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4203138128015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3391745 + ... + 4462085.

It is an arithmetic number, because the mean of its divisors is an integer number (333786152700).

Almost surely, 2^{4203138128015} is an apocalyptic number.

4203138128015 is a deficient number, since it is larger than the sum of its proper divisors (1137440315185).

4203138128015 is a wasteful number, since it uses less digits than its factorization.

4203138128015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116562.

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 4203138128015 in words is "four trillion, two hundred three billion, one hundred thirty-eight million, one hundred twenty-eight thousand, fifteen".