2123509197193 has 8 divisors (see below), whose sum is σ = 2124290234880. Its totient is φ = 2122728266880.

The previous prime is 2123509197181. The next prime is 2123509197269. The reversal of 2123509197193 is 3917919053212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123509197193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2123509197193.

It is not an unprimeable number, because it can be changed into a prime (2123509197133) 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, 70657896 + ... + 70687942.

It is an arithmetic number, because the mean of its divisors is an integer number (265536279360).

Almost surely, 2^{2123509197193} is an apocalyptic number.

It is an amenable number.

2123509197193 is a deficient number, since it is larger than the sum of its proper divisors (781037687).

2123509197193 is a wasteful number, since it uses less digits than its factorization.

2123509197193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53687.

The product of its (nonzero) digits is 918540, while the sum is 52.

The spelling of 2123509197193 in words is "two trillion, one hundred twenty-three billion, five hundred nine million, one hundred ninety-seven thousand, one hundred ninety-three".