2129128506003 has 8 divisors (see below), whose sum is σ = 2838856937728. Its totient is φ = 1419409539144.

The previous prime is 2129128505983. The next prime is 2129128506023. The reversal of 2129128506003 is 3006058219212.

It is an interprime number because it is at equal distance from previous prime (2129128505983) and next prime (2129128506023).

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

It is not a de Polignac number, because 2129128506003 - 2⁵ = 2129128505971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2129128506023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1823551 + ... + 2753832.

It is an arithmetic number, because the mean of its divisors is an integer number (354857117216).

Almost surely, 2^{2129128506003} is an apocalyptic number.

2129128506003 is a deficient number, since it is larger than the sum of its proper divisors (709728431725).

2129128506003 is a wasteful number, since it uses less digits than its factorization.

2129128506003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732433.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 2129128506003 in words is "two trillion, one hundred twenty-nine billion, one hundred twenty-eight million, five hundred six thousand, three".