202102013123119 has 4 divisors (see below), whose sum is σ = 202544249476144. Its totient is φ = 201659776770096.

The previous prime is 202102013123111. The next prime is 202102013123287. The reversal of 202102013123119 is 911321310201202.

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 202102013123119 - 2³ = 202102013123111 is a prime.

It is a super-2 number, since 2×202102013123119² (a number of 29 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 (202102013123111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221118175827 + ... + 221118176740.

It is an arithmetic number, because the mean of its divisors is an integer number (50636062369036).

Almost surely, 2^{202102013123119} is an apocalyptic number.

202102013123119 is a deficient number, since it is larger than the sum of its proper divisors (442236353025).

202102013123119 is an equidigital number, since it uses as much as digits as its factorization.

202102013123119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442236353024.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 202102013123119 in words is "two hundred two trillion, one hundred two billion, thirteen million, one hundred twenty-three thousand, one hundred nineteen".