3121132223 has 32 divisors (see below), whose sum is σ = 3749898240. Its totient is φ = 2564321760.

The previous prime is 3121132141. The next prime is 3121132229. The reversal of 3121132223 is 3222311213.

It is not a de Polignac number, because 3121132223 - 2⁸ = 3121131967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3121132195 and 3121132204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121132229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2628836 + ... + 2630022.

It is an arithmetic number, because the mean of its divisors is an integer number (117184320).

Almost surely, 2^3121132223 is an apocalyptic number.

3121132223 is a deficient number, since it is larger than the sum of its proper divisors (628766017).

3121132223 is a wasteful number, since it uses less digits than its factorization.

3121132223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787.

The product of its digits is 432, while the sum is 20.

The square root of 3121132223 is about 55867.0942774009. The cubic root of 3121132223 is about 1461.4054494998.

Adding to 3121132223 its reverse (3222311213), we get a palindrome (6343443436).

The spelling of 3121132223 in words is "three billion, one hundred twenty-one million, one hundred thirty-two thousand, two hundred twenty-three".