1321420004041 has 4 divisors (see below), whose sum is σ = 1399150592532. Its totient is φ = 1243689415552.

The previous prime is 1321420004017. The next prime is 1321420004053. The reversal of 1321420004041 is 1404000241231.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 497144857225 + 824275146816 = 705085^2 + 907896^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321420004041 - 2⁹ = 1321420003529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321420004011) 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, 38865294220 + ... + 38865294253.

It is an arithmetic number, because the mean of its divisors is an integer number (349787648133).

Almost surely, 2^{1321420004041} is an apocalyptic number.

It is an amenable number.

1321420004041 is a deficient number, since it is larger than the sum of its proper divisors (77730588491).

1321420004041 is an equidigital number, since it uses as much as digits as its factorization.

1321420004041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77730588490.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1321420004041 its reverse (1404000241231), we get a palindrome (2725420245272).

The spelling of 1321420004041 in words is "one trillion, three hundred twenty-one billion, four hundred twenty million, four thousand, forty-one".