1231114342144 has 36 divisors (see below), whose sum is σ = 2564263988496. Its totient is φ = 588793812992.

The previous prime is 1231114342141. The next prime is 1231114342147. The reversal of 1231114342144 is 4412434111321.

It is an interprime number because it is at equal distance from previous prime (1231114342141) and next prime (1231114342147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231114342141) 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, 104538469 + ... + 104550244.

It is an arithmetic number, because the mean of its divisors is an integer number (71229555236).

Almost surely, 2^{1231114342144} is an apocalyptic number.

It is an amenable number.

1231114342144 is an abundant number, since it is smaller than the sum of its proper divisors (1333149646352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231114342144 is an equidigital number, since it uses as much as digits as its factorization.

1231114342144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209088752 (or 209088738 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

Adding to 1231114342144 its reverse (4412434111321), we get a palindrome (5643548453465).

The spelling of 1231114342144 in words is "one trillion, two hundred thirty-one billion, one hundred fourteen million, three hundred forty-two thousand, one hundred forty-four".