1302312131111 has 16 divisors (see below), whose sum is σ = 1328469880320. Its totient is φ = 1276393466880.

The previous prime is 1302312131069. The next prime is 1302312131119. The reversal of 1302312131111 is 1111312132031.

It is a cyclic number.

It is not a de Polignac number, because 1302312131111 - 2¹⁰ = 1302312130087 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 (1302312131119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13238675 + ... + 13336683.

It is an arithmetic number, because the mean of its divisors is an integer number (83029367520).

Almost surely, 2^{1302312131111} is an apocalyptic number.

1302312131111 is a deficient number, since it is larger than the sum of its proper divisors (26157749209).

1302312131111 is an equidigital number, since it uses as much as digits as its factorization.

1302312131111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99226.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1302312131111 its reverse (1111312132031), we get a palindrome (2413624263142).

The spelling of 1302312131111 in words is "one trillion, three hundred two billion, three hundred twelve million, one hundred thirty-one thousand, one hundred eleven".