1545341113421 has 4 divisors (see below), whose sum is σ = 1766104129632. Its totient is φ = 1324578097212.

The previous prime is 1545341113397. The next prime is 1545341113427. The reversal of 1545341113421 is 1243111435451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1545341113421 - 2¹⁰ = 1545341112397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1545341113427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110381508095 + ... + 110381508108.

It is an arithmetic number, because the mean of its divisors is an integer number (441526032408).

Almost surely, 2^{1545341113421} is an apocalyptic number.

It is an amenable number.

1545341113421 is a deficient number, since it is larger than the sum of its proper divisors (220763016211).

1545341113421 is an equidigital number, since it uses as much as digits as its factorization.

1545341113421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220763016210.

The product of its digits is 28800, while the sum is 35.

Adding to 1545341113421 its reverse (1243111435451), we get a palindrome (2788452548872).

The spelling of 1545341113421 in words is "one trillion, five hundred forty-five billion, three hundred forty-one million, one hundred thirteen thousand, four hundred twenty-one".