1343134434421 has 4 divisors (see below), whose sum is σ = 1446452467852. Its totient is φ = 1239816400992.

The previous prime is 1343134434391. The next prime is 1343134434427. The reversal of 1343134434421 is 1244344313431.

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 195440031396 + 1147694403025 = 442086^2 + 1071305^2 .

It is not a de Polignac number, because 1343134434421 - 2⁷ = 1343134434293 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 (1343134434427) 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, 51659016696 + ... + 51659016721.

It is an arithmetic number, because the mean of its divisors is an integer number (361613116963).

Almost surely, 2^{1343134434421} is an apocalyptic number.

It is an amenable number.

1343134434421 is a deficient number, since it is larger than the sum of its proper divisors (103318033431).

1343134434421 is a wasteful number, since it uses less digits than its factorization.

1343134434421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103318033430.

The product of its digits is 165888, while the sum is 37.

Adding to 1343134434421 its reverse (1244344313431), we get a palindrome (2587478747852).

It can be divided in two parts, 1343134 and 434421, that added together give a triangular number (1777555 = T₁₈₈₅).

The spelling of 1343134434421 in words is "one trillion, three hundred forty-three billion, one hundred thirty-four million, four hundred thirty-four thousand, four hundred twenty-one".