1312421123111 has 16 divisors (see below), whose sum is σ = 1533091415040. Its totient is φ = 1100312385120.

The previous prime is 1312421123059. The next prime is 1312421123137. The reversal of 1312421123111 is 1113211242131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312421123111 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 (1312421123141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11030900 + ... + 11149241.

It is an arithmetic number, because the mean of its divisors is an integer number (95818213440).

Almost surely, 2^{1312421123111} is an apocalyptic number.

1312421123111 is a deficient number, since it is larger than the sum of its proper divisors (220670291929).

1312421123111 is a wasteful number, since it uses less digits than its factorization.

1312421123111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22180334.

The product of its digits is 288, while the sum is 23.

Adding to 1312421123111 its reverse (1113211242131), we get a palindrome (2425632365242).

The spelling of 1312421123111 in words is "one trillion, three hundred twelve billion, four hundred twenty-one million, one hundred twenty-three thousand, one hundred eleven".