380172011 has 2 divisors, whose sum is σ = 380172012. Its totient is φ = 380172010.

The previous prime is 380171983. The next prime is 380172017. The reversal of 380172011 is 110271083.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 380172011 - 2²⁶ = 313063147 is a prime.

It is not a weakly prime, because it can be changed into another prime (380172017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190086005 + 190086006.

It is an arithmetic number, because the mean of its divisors is an integer number (190086006).

Almost surely, 2^380172011 is an apocalyptic number.

380172011 is a deficient number, since it is larger than the sum of its proper divisors (1).

380172011 is an equidigital number, since it uses as much as digits as its factorization.

380172011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 380172011 is about 19498.0001795056. Note that the first 3 decimals coincide. The cubic root of 380172011 is about 724.4249175582.

The spelling of 380172011 in words is "three hundred eighty million, one hundred seventy-two thousand, eleven".