1312124412043 has 4 divisors (see below), whose sum is σ = 1333634648368. Its totient is φ = 1290614175720.

The previous prime is 1312124412037. The next prime is 1312124412089. The reversal of 1312124412043 is 3402144212131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312124412043 - 2³³ = 1303534477451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312124412013) 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, 10755118071 + ... + 10755118192.

It is an arithmetic number, because the mean of its divisors is an integer number (333408662092).

Almost surely, 2^{1312124412043} is an apocalyptic number.

1312124412043 is a deficient number, since it is larger than the sum of its proper divisors (21510236325).

1312124412043 is an equidigital number, since it uses as much as digits as its factorization.

1312124412043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21510236324.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1312124412043 its reverse (3402144212131), we get a palindrome (4714268624174).

The spelling of 1312124412043 in words is "one trillion, three hundred twelve billion, one hundred twenty-four million, four hundred twelve thousand, forty-three".