1312400223042 has 8 divisors (see below), whose sum is σ = 2624800446096. Its totient is φ = 437466741012.

The previous prime is 1312400223041. The next prime is 1312400223083. The reversal of 1312400223042 is 2403220042131.

It is a happy number.

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

1312400223042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1312400223041) 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, 109366685248 + ... + 109366685259.

It is an arithmetic number, because the mean of its divisors is an integer number (328100055762).

Almost surely, 2^{1312400223042} is an apocalyptic number.

1312400223042 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.

1312400223042 is a wasteful number, since it uses less digits than its factorization.

1312400223042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218733370512.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1312400223042 its reverse (2403220042131), we get a palindrome (3715620265173).

The spelling of 1312400223042 in words is "one trillion, three hundred twelve billion, four hundred million, two hundred twenty-three thousand, forty-two".