1231432113144 has 32 divisors (see below), whose sum is σ = 3080072689920. Its totient is φ = 410278383456.

The previous prime is 1231432113137. The next prime is 1231432113167. The reversal of 1231432113144 is 4413112341321.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12386182 + ... + 12485205.

It is an arithmetic number, because the mean of its divisors is an integer number (96252271560).

Almost surely, 2^{1231432113144} is an apocalyptic number.

It is an amenable number.

1231432113144 is an abundant number, since it is smaller than the sum of its proper divisors (1848640576776).

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

1231432113144 is a wasteful number, since it uses less digits than its factorization.

1231432113144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24873459 (or 24873455 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

Adding to 1231432113144 its reverse (4413112341321), we get a palindrome (5644544454465).

The spelling of 1231432113144 in words is "one trillion, two hundred thirty-one billion, four hundred thirty-two million, one hundred thirteen thousand, one hundred forty-four".