3156121326 has 32 divisors (see below), whose sum is σ = 6382234656. Its totient is φ = 1040400000.

The previous prime is 3156121321. The next prime is 3156121343. The reversal of 3156121326 is 6231216513.

It is a super-2 number, since 2×3156121326² = 19922203648863996552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3156121293 and 3156121302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3156121321) 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, 616176 + ... + 621276.

It is an arithmetic number, because the mean of its divisors is an integer number (199444833).

Almost surely, 2^3156121326 is an apocalyptic number.

3156121326 is an abundant number, since it is smaller than the sum of its proper divisors (3226113330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3156121326 is a wasteful number, since it uses less digits than its factorization.

3156121326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6228.

The product of its digits is 6480, while the sum is 30.

The square root of 3156121326 is about 56179.3674403691. The cubic root of 3156121326 is about 1466.8461431077.

Adding to 3156121326 its reverse (6231216513), we get a palindrome (9387337839).

The spelling of 3156121326 in words is "three billion, one hundred fifty-six million, one hundred twenty-one thousand, three hundred twenty-six".