3121313153 has 8 divisors (see below), whose sum is σ = 3634521408. Its totient is φ = 2624931504.

The previous prime is 3121313131. The next prime is 3121313161. The reversal of 3121313153 is 3513131213.

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

It is a cyclic number.

It is not a de Polignac number, because 3121313153 - 2¹⁸ = 3121051009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3121313183) 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, 4206251 + ... + 4206992.

It is an arithmetic number, because the mean of its divisors is an integer number (454315176).

Almost surely, 2^3121313153 is an apocalyptic number.

It is an amenable number.

3121313153 is a deficient number, since it is larger than the sum of its proper divisors (513208255).

3121313153 is an equidigital number, since it uses as much as digits as its factorization.

3121313153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8413303.

The product of its digits is 810, while the sum is 23.

The square root of 3121313153 is about 55868.7135434493. The cubic root of 3121313153 is about 1461.4336878611.

Adding to 3121313153 its reverse (3513131213), we get a palindrome (6634444366).

The spelling of 3121313153 in words is "three billion, one hundred twenty-one million, three hundred thirteen thousand, one hundred fifty-three".