1299992986111 has 4 divisors (see below), whose sum is σ = 1309916596824. Its totient is φ = 1290069375400.

The previous prime is 1299992986109. The next prime is 1299992986133. The reversal of 1299992986111 is 1116892999921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1299992986111 - 2¹ = 1299992986109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299992986141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4961805160 + ... + 4961805421.

It is an arithmetic number, because the mean of its divisors is an integer number (327479149206).

Almost surely, 2^{1299992986111} is an apocalyptic number.

1299992986111 is a deficient number, since it is larger than the sum of its proper divisors (9923610713).

1299992986111 is an equidigital number, since it uses as much as digits as its factorization.

1299992986111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9923610712.

The product of its digits is 11337408, while the sum is 67.

The spelling of 1299992986111 in words is "one trillion, two hundred ninety-nine billion, nine hundred ninety-two million, nine hundred eighty-six thousand, one hundred eleven".