381275520371 has 2 divisors, whose sum is σ = 381275520372. Its totient is φ = 381275520370.

The previous prime is 381275520347. The next prime is 381275520377. The reversal of 381275520371 is 173025572183.

It is a strong prime.

It is an emirp because it is prime and its reverse (173025572183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 381275520371 - 2¹⁸ = 381275258227 is a prime.

It is not a weakly prime, because it can be changed into another prime (381275520377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190637760185 + 190637760186.

It is an arithmetic number, because the mean of its divisors is an integer number (190637760186).

Almost surely, 2^381275520371 is an apocalyptic number.

381275520371 is a deficient number, since it is larger than the sum of its proper divisors (1).

381275520371 is an equidigital number, since it uses as much as digits as its factorization.

381275520371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 381275520371 in words is "three hundred eighty-one billion, two hundred seventy-five million, five hundred twenty thousand, three hundred seventy-one".