1231122434013 has 12 divisors (see below), whose sum is σ = 1778313806880. Its totient is φ = 820736360136.

The previous prime is 1231122433969. The next prime is 1231122434057. The reversal of 1231122434013 is 3104342211321.

1231122434013 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 12 + 243 + 401 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1231122433969) and next prime (1231122434057).

It is not a de Polignac number, because 1231122434013 - 2⁸ = 1231122433757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231122434413) 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 11 ways as a sum of consecutive naturals, for example, 316153 + ... + 1600686.

It is an arithmetic number, because the mean of its divisors is an integer number (148192817240).

Almost surely, 2^{1231122434013} is an apocalyptic number.

It is an amenable number.

1231122434013 is a deficient number, since it is larger than the sum of its proper divisors (547191372867).

1231122434013 is a wasteful number, since it uses less digits than its factorization.

1231122434013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988208 (or 1988205 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1231122434013 its reverse (3104342211321), we get a palindrome (4335464645334).

The spelling of 1231122434013 in words is "one trillion, two hundred thirty-one billion, one hundred twenty-two million, four hundred thirty-four thousand, thirteen".