808202123 has 2 divisors, whose sum is σ = 808202124. Its totient is φ = 808202122.

The previous prime is 808202099. The next prime is 808202251. The reversal of 808202123 is 321202808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 808202123 - 2¹⁰ = 808201099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 808202092 and 808202101.

It is not a weakly prime, because it can be changed into another prime (808202323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404101061 + 404101062.

It is an arithmetic number, because the mean of its divisors is an integer number (404101062).

Almost surely, 2^808202123 is an apocalyptic number.

808202123 is a deficient number, since it is larger than the sum of its proper divisors (1).

808202123 is an equidigital number, since it uses as much as digits as its factorization.

808202123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 808202123 is about 28428.8959159514. The cubic root of 808202123 is about 931.4795591726.

The spelling of 808202123 in words is "eight hundred eight million, two hundred two thousand, one hundred twenty-three".