3133420421 has 4 divisors (see below), whose sum is σ = 3162704832. Its totient is φ = 3104136012.

The previous prime is 3133420379. The next prime is 3133420447. The reversal of 3133420421 is 1240243313.

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 3133420421 - 2¹⁰ = 3133419397 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 (3133420471) 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, 14642045 + ... + 14642258.

It is an arithmetic number, because the mean of its divisors is an integer number (790676208).

Almost surely, 2^3133420421 is an apocalyptic number.

It is an amenable number.

3133420421 is a deficient number, since it is larger than the sum of its proper divisors (29284411).

3133420421 is a wasteful number, since it uses less digits than its factorization.

3133420421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29284410.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3133420421 is about 55976.9633063459. The cubic root of 3133420421 is about 1463.3208359839.

Adding to 3133420421 its reverse (1240243313), we get a palindrome (4373663734).

The spelling of 3133420421 in words is "three billion, one hundred thirty-three million, four hundred twenty thousand, four hundred twenty-one".