1312031231142 has 8 divisors (see below), whose sum is σ = 2624062462296. Its totient is φ = 437343743712.

The previous prime is 1312031230949. The next prime is 1312031231153. The reversal of 1312031231142 is 2411321302131.

It is a sphenic number, since it is the product of 3 distinct primes.

1312031231142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109335935923 + ... + 109335935934.

It is an arithmetic number, because the mean of its divisors is an integer number (328007807787).

Almost surely, 2^{1312031231142} is an apocalyptic number.

1312031231142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1312031231142 is a wasteful number, since it uses less digits than its factorization.

1312031231142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218671871862.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1312031231142 its reverse (2411321302131), we get a palindrome (3723352533273).

The spelling of 1312031231142 in words is "one trillion, three hundred twelve billion, thirty-one million, two hundred thirty-one thousand, one hundred forty-two".