3431132221 has 8 divisors (see below), whose sum is σ = 3746399904. Its totient is φ = 3116422320.

The previous prime is 3431132149. The next prime is 3431132251. The reversal of 3431132221 is 1222311343.

3431132221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3431132221 - 2⁷ = 3431132093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3431132192 and 3431132201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431132251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126526 + ... + 151231.

It is an arithmetic number, because the mean of its divisors is an integer number (468299988).

Almost surely, 2^3431132221 is an apocalyptic number.

It is an amenable number.

3431132221 is a deficient number, since it is larger than the sum of its proper divisors (315267683).

3431132221 is a wasteful number, since it uses less digits than its factorization.

3431132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278891.

The product of its digits is 864, while the sum is 22.

The square root of 3431132221 is about 58575.8672236272. The cubic root of 3431132221 is about 1508.2702032842.

Adding to 3431132221 its reverse (1222311343), we get a palindrome (4653443564).

It can be divided in two parts, 34311322 and 21, that added together give a palindrome (34311343).

The spelling of 3431132221 in words is "three billion, four hundred thirty-one million, one hundred thirty-two thousand, two hundred twenty-one".