4155213121503 has 8 divisors (see below), whose sum is σ = 5540299422768. Its totient is φ = 2770134450624.

The previous prime is 4155213121483. The next prime is 4155213121517. The reversal of 4155213121503 is 3051213125514.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4155213121503 - 2⁶ = 4155213121439 is a prime.

It is a super-2 number, since 2×4155213121503² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4155213121603) 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 7 ways as a sum of consecutive naturals, for example, 485500 + ... + 2923377.

It is an arithmetic number, because the mean of its divisors is an integer number (692537427846).

Almost surely, 2^{4155213121503} is an apocalyptic number.

4155213121503 is a deficient number, since it is larger than the sum of its proper divisors (1385086301265).

4155213121503 is a wasteful number, since it uses less digits than its factorization.

4155213121503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815193.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 4155213121503 in words is "four trillion, one hundred fifty-five billion, two hundred thirteen million, one hundred twenty-one thousand, five hundred three".