421133542313 has 4 divisors (see below), whose sum is σ = 459418409808. Its totient is φ = 382848674820.

The previous prime is 421133542261. The next prime is 421133542327. The reversal of 421133542313 is 313245331124.

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 421133542313 - 2³⁸ = 146255635369 is a prime.

It is a super-2 number, since 2×421133542313² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 421133542313.

It is not an unprimeable number, because it can be changed into a prime (421133542363) 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, 19142433731 + ... + 19142433752.

It is an arithmetic number, because the mean of its divisors is an integer number (114854602452).

Almost surely, 2^421133542313 is an apocalyptic number.

It is an amenable number.

421133542313 is a deficient number, since it is larger than the sum of its proper divisors (38284867495).

421133542313 is a wasteful number, since it uses less digits than its factorization.

421133542313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38284867494.

The product of its digits is 25920, while the sum is 32.

Adding to 421133542313 its reverse (313245331124), we get a palindrome (734378873437).

The spelling of 421133542313 in words is "four hundred twenty-one billion, one hundred thirty-three million, five hundred forty-two thousand, three hundred thirteen".