1312142142 has 8 divisors (see below), whose sum is σ = 2624284296. Its totient is φ = 437380712.

The previous prime is 1312142141. The next prime is 1312142233. The reversal of 1312142142 is 2412412131.

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

1312142142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312142141) 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, 109345173 + ... + 109345184.

It is an arithmetic number, because the mean of its divisors is an integer number (328035537).

Almost surely, 2^1312142142 is an apocalyptic number.

1312142142 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.

1312142142 is a wasteful number, since it uses less digits than its factorization.

1312142142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218690362.

The product of its digits is 384, while the sum is 21.

The square root of 1312142142 is about 36223.5026191560. The cubic root of 1312142142 is about 1094.7802682469.

Adding to 1312142142 its reverse (2412412131), we get a palindrome (3724554273).

The spelling of 1312142142 in words is "one billion, three hundred twelve million, one hundred forty-two thousand, one hundred forty-two".