3551240343211 has 16 divisors (see below), whose sum is σ = 4011928639200. Its totient is φ = 3113763385600.

The previous prime is 3551240343023. The next prime is 3551240343239. The reversal of 3551240343211 is 1123430421553.

It is a cyclic number.

It is not a de Polignac number, because 3551240343211 - 2¹⁹ = 3551239818923 is a prime.

It is a super-2 number, since 2×3551240343211² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3551240343241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5615026 + ... + 6215383.

It is an arithmetic number, because the mean of its divisors is an integer number (250745539950).

Almost surely, 2^{3551240343211} is an apocalyptic number.

3551240343211 is a deficient number, since it is larger than the sum of its proper divisors (460688295989).

3551240343211 is a wasteful number, since it uses less digits than its factorization.

3551240343211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11831390.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 3551240343211 its reverse (1123430421553), we get a palindrome (4674670764764).

The spelling of 3551240343211 in words is "three trillion, five hundred fifty-one billion, two hundred forty million, three hundred forty-three thousand, two hundred eleven".