383276343721 has 2 divisors, whose sum is σ = 383276343722. Its totient is φ = 383276343720.

The previous prime is 383276343701. The next prime is 383276343727. The reversal of 383276343721 is 127343672383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350511361600 + 32764982121 = 592040^2 + 181011^2 .

It is an emirp because it is prime and its reverse (127343672383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 383276343721 - 2¹⁵ = 383276310953 is a prime.

It is a super-2 number, since 2×383276343721² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (383276343727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191638171860 + 191638171861.

It is an arithmetic number, because the mean of its divisors is an integer number (191638171861).

Almost surely, 2^383276343721 is an apocalyptic number.

It is an amenable number.

383276343721 is a deficient number, since it is larger than the sum of its proper divisors (1).

383276343721 is an equidigital number, since it uses as much as digits as its factorization.

383276343721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 49.

The spelling of 383276343721 in words is "three hundred eighty-three billion, two hundred seventy-six million, three hundred forty-three thousand, seven hundred twenty-one".