1312002421003 has 4 divisors (see below), whose sum is σ = 1312080398640. Its totient is φ = 1311924443368.

The previous prime is 1312002421001. The next prime is 1312002421007. The reversal of 1312002421003 is 3001242002131.

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 1312002421003 - 2¹ = 1312002421001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312002421001) 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, 38963575 + ... + 38997232.

It is an arithmetic number, because the mean of its divisors is an integer number (328020099660).

Almost surely, 2^{1312002421003} is an apocalyptic number.

1312002421003 is a deficient number, since it is larger than the sum of its proper divisors (77977637).

1312002421003 is an equidigital number, since it uses as much as digits as its factorization.

1312002421003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77977636.

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

Adding to 1312002421003 its reverse (3001242002131), we get a palindrome (4313244423134).

The spelling of 1312002421003 in words is "one trillion, three hundred twelve billion, two million, four hundred twenty-one thousand, three".