3426403121 has 2 divisors, whose sum is σ = 3426403122. Its totient is φ = 3426403120.

The previous prime is 3426403109. The next prime is 3426403147. The reversal of 3426403121 is 1213046243.

It is an a-pointer prime, because the next prime (3426403147) can be obtained adding 3426403121 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2531196721 + 895206400 = 50311^2 + 29920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3426403121 is a prime.

It is not a weakly prime, because it can be changed into another prime (3426403151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1713201560 + 1713201561.

It is an arithmetic number, because the mean of its divisors is an integer number (1713201561).

Almost surely, 2^3426403121 is an apocalyptic number.

It is an amenable number.

3426403121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3426403121 is an equidigital number, since it uses as much as digits as its factorization.

3426403121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 3426403121 is about 58535.4859978116. The cubic root of 3426403121 is about 1507.5769394014.

Adding to 3426403121 its reverse (1213046243), we get a palindrome (4639449364).

The spelling of 3426403121 in words is "three billion, four hundred twenty-six million, four hundred three thousand, one hundred twenty-one".