3133101721 has 4 divisors (see below), whose sum is σ = 3186205200. Its totient is φ = 3079998244.

The previous prime is 3133101667. The next prime is 3133101779. The reversal of 3133101721 is 1271013313.

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 3133101721 - 2¹⁹ = 3132577433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3133101692 and 3133101701.

It is not an unprimeable number, because it can be changed into a prime (3133101221) 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, 26551651 + ... + 26551768.

It is an arithmetic number, because the mean of its divisors is an integer number (796551300).

Almost surely, 2^3133101721 is an apocalyptic number.

It is an amenable number.

3133101721 is a deficient number, since it is larger than the sum of its proper divisors (53103479).

3133101721 is an equidigital number, since it uses as much as digits as its factorization.

3133101721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53103478.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 3133101721 is about 55974.1165271950. The cubic root of 3133101721 is about 1463.2712228775.

The spelling of 3133101721 in words is "three billion, one hundred thirty-three million, one hundred one thousand, seven hundred twenty-one".