170103121919 has 4 divisors (see below), whose sum is σ = 170104841760. Its totient is φ = 170101402080.

The previous prime is 170103121841. The next prime is 170103121927. The reversal of 170103121919 is 919121301071.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 170103121919 - 2²⁰ = 170102073343 is a prime.

It is a super-2 number, since 2×170103121919² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170103121939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701879 + ... + 912600.

It is an arithmetic number, because the mean of its divisors is an integer number (42526210440).

Almost surely, 2^170103121919 is an apocalyptic number.

170103121919 is a deficient number, since it is larger than the sum of its proper divisors (1719841).

170103121919 is a wasteful number, since it uses less digits than its factorization.

170103121919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719840.

The product of its (nonzero) digits is 3402, while the sum is 35.

The spelling of 170103121919 in words is "one hundred seventy billion, one hundred three million, one hundred twenty-one thousand, nine hundred nineteen".