3421201231 has 4 divisors (see below), whose sum is σ = 3909944272. Its totient is φ = 2932458192.

The previous prime is 3421201151. The next prime is 3421201241. The reversal of 3421201231 is 1321021243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1321021243 = 71 ⋅18605933.

It is a cyclic number.

It is not a de Polignac number, because 3421201231 - 2⁹ = 3421200719 is a prime.

It is a super-2 number, since 2×3421201231² = 23409235725991830722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3421201199 and 3421201208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421201241) 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, 244371510 + ... + 244371523.

It is an arithmetic number, because the mean of its divisors is an integer number (977486068).

Almost surely, 2^3421201231 is an apocalyptic number.

3421201231 is a deficient number, since it is larger than the sum of its proper divisors (488743041).

3421201231 is an equidigital number, since it uses as much as digits as its factorization.

3421201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488743040.

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

The square root of 3421201231 is about 58491.0354755325. The cubic root of 3421201231 is about 1506.8136295862.

Adding to 3421201231 its reverse (1321021243), we get a palindrome (4742222474).

The spelling of 3421201231 in words is "three billion, four hundred twenty-one million, two hundred one thousand, two hundred thirty-one".