3133451021 has 2 divisors, whose sum is σ = 3133451022. Its totient is φ = 3133451020.

The previous prime is 3133450973. The next prime is 3133451047. The reversal of 3133451021 is 1201543313.

3133451021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1627234921 + 1506216100 = 40339^2 + 38810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3133451021 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3133451081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1566725510 + 1566725511.

It is an arithmetic number, because the mean of its divisors is an integer number (1566725511).

Almost surely, 2^3133451021 is an apocalyptic number.

It is an amenable number.

3133451021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3133451021 is an equidigital number, since it uses as much as digits as its factorization.

3133451021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 3133451021 is about 55977.2366324026. The cubic root of 3133451021 is about 1463.3255994123.

Adding to 3133451021 its reverse (1201543313), we get a palindrome (4334994334).

The spelling of 3133451021 in words is "three billion, one hundred thirty-three million, four hundred fifty-one thousand, twenty-one".