1319102921 has 2 divisors, whose sum is σ = 1319102922. Its totient is φ = 1319102920.

The previous prime is 1319102867. The next prime is 1319102929. The reversal of 1319102921 is 1292019131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1075118521 + 243984400 = 32789^2 + 15620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1319102921 is a prime.

It is not a weakly prime, because it can be changed into another prime (1319102929) 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, 659551460 + 659551461.

It is an arithmetic number, because the mean of its divisors is an integer number (659551461).

Almost surely, 2^1319102921 is an apocalyptic number.

It is an amenable number.

1319102921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1319102921 is an equidigital number, since it uses as much as digits as its factorization.

1319102921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 1319102921 is about 36319.4565074975. The cubic root of 1319102921 is about 1096.7127539300.

The spelling of 1319102921 in words is "one billion, three hundred nineteen million, one hundred two thousand, nine hundred twenty-one".