4013303421121 has 4 divisors (see below), whose sum is σ = 4014497504644. Its totient is φ = 4012109337600.

The previous prime is 4013303421119. The next prime is 4013303421187. The reversal of 4013303421121 is 1211243033104.

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 1074050340496 + 2939253080625 = 1036364^2 + 1714425^2 .

It is a cyclic number.

It is not a de Polignac number, because 4013303421121 - 2¹ = 4013303421119 is a prime.

It is a super-2 number, since 2×4013303421121² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4013303451121) 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, 597036720 + ... + 597043441.

It is an arithmetic number, because the mean of its divisors is an integer number (1003624376161).

Almost surely, 2^{4013303421121} is an apocalyptic number.

It is an amenable number.

4013303421121 is a deficient number, since it is larger than the sum of its proper divisors (1194083523).

4013303421121 is a wasteful number, since it uses less digits than its factorization.

4013303421121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194083522.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 4013303421121 its reverse (1211243033104), we get a palindrome (5224546454225).

The spelling of 4013303421121 in words is "four trillion, thirteen billion, three hundred three million, four hundred twenty-one thousand, one hundred twenty-one".