1312230142 has 8 divisors (see below), whose sum is σ = 1971229176. Its totient is φ = 655153752.

The previous prime is 1312230107. The next prime is 1312230149. The reversal of 1312230142 is 2410322131.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312230149) 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, 478953 + ... + 481684.

It is an arithmetic number, because the mean of its divisors is an integer number (246403647).

Almost surely, 2^1312230142 is an apocalyptic number.

1312230142 is a deficient number, since it is larger than the sum of its proper divisors (658999034).

1312230142 is an equidigital number, since it uses as much as digits as its factorization.

1312230142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961322.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1312230142 is about 36224.7172797801. The cubic root of 1312230142 is about 1094.8047418428.

Adding to 1312230142 its reverse (2410322131), we get a palindrome (3722552273).

It can be divided in two parts, 13122 and 30142, that added together give a square (43264 = 208²).

The spelling of 1312230142 in words is "one billion, three hundred twelve million, two hundred thirty thousand, one hundred forty-two".