3412321021 has 2 divisors, whose sum is σ = 3412321022. Its totient is φ = 3412321020.

The previous prime is 3412321013. The next prime is 3412321049. The reversal of 3412321021 is 1201232143.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3411844921 + 476100 = 58411^2 + 690^2 .

It is a cyclic number.

It is not a de Polignac number, because 3412321021 - 2³ = 3412321013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3412321021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3412321421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1706160510 + 1706160511.

It is an arithmetic number, because the mean of its divisors is an integer number (1706160511).

Almost surely, 2^3412321021 is an apocalyptic number.

It is an amenable number.

3412321021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3412321021 is an equidigital number, since it uses as much as digits as its factorization.

3412321021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3412321021 is about 58415.0752888328. The cubic root of 3412321021 is about 1505.5087842458.

Adding to 3412321021 its reverse (1201232143), we get a palindrome (4613553164).

The spelling of 3412321021 in words is "three billion, four hundred twelve million, three hundred twenty-one thousand, twenty-one".