3215113121 has 16 divisors (see below), whose sum is σ = 3714536448. Its totient is φ = 2754008400.

The previous prime is 3215113079. The next prime is 3215113127. The reversal of 3215113121 is 1213115123.

It is a de Polignac number, because none of the positive numbers 2^k-3215113121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3215113093 and 3215113102.

It is not an unprimeable number, because it can be changed into a prime (3215113127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77885 + ... + 111786.

It is an arithmetic number, because the mean of its divisors is an integer number (232158528).

Almost surely, 2^3215113121 is an apocalyptic number.

It is an amenable number.

3215113121 is a deficient number, since it is larger than the sum of its proper divisors (499423327).

3215113121 is a wasteful number, since it uses less digits than its factorization.

3215113121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189772.

The product of its digits is 180, while the sum is 20.

The square root of 3215113121 is about 56701.9675231821. The cubic root of 3215113121 is about 1475.9288407624.

Adding to 3215113121 its reverse (1213115123), we get a palindrome (4428228244).

The spelling of 3215113121 in words is "three billion, two hundred fifteen million, one hundred thirteen thousand, one hundred twenty-one".