1021421413345 has 8 divisors (see below), whose sum is σ = 1290216522240. Its totient is φ = 774129913200.

The previous prime is 1021421413321. The next prime is 1021421413417. The reversal of 1021421413345 is 5433141241201.

It is a happy number.

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

It is not a de Polignac number, because 1021421413345 - 2¹⁹ = 1021420889057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5375902081 + ... + 5375902270.

It is an arithmetic number, because the mean of its divisors is an integer number (161277065280).

Almost surely, 2^{1021421413345} is an apocalyptic number.

It is an amenable number.

1021421413345 is a deficient number, since it is larger than the sum of its proper divisors (268795108895).

1021421413345 is a wasteful number, since it uses less digits than its factorization.

1021421413345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10751804375.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 1021421413345 its reverse (5433141241201), we get a palindrome (6454562654546).

The spelling of 1021421413345 in words is "one trillion, twenty-one billion, four hundred twenty-one million, four hundred thirteen thousand, three hundred forty-five".