1298319111 has 64 divisors (see below), whose sum is σ = 2074429440. Its totient is φ = 810624672.

The previous prime is 1298319107. The next prime is 1298319119. The reversal of 1298319111 is 1119138921.

It is not a de Polignac number, because 1298319111 - 2² = 1298319107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298319119) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2665710 + ... + 2666196.

It is an arithmetic number, because the mean of its divisors is an integer number (32412960).

Almost surely, 2^1298319111 is an apocalyptic number.

1298319111 is a deficient number, since it is larger than the sum of its proper divisors (776110329).

1298319111 is an frugal number, since it uses more digits than its factorization.

1298319111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 566 counting only the distinct ones).

The product of its digits is 3888, while the sum is 36.

The square root of 1298319111 is about 36032.1954784884. The cubic root of 1298319111 is about 1090.9222929255.

The spelling of 1298319111 in words is "one billion, two hundred ninety-eight million, three hundred nineteen thousand, one hundred eleven".