3121101001 has 8 divisors (see below), whose sum is σ = 3134893608. Its totient is φ = 3107328000.

The previous prime is 3121100963. The next prime is 3121101029. The reversal of 3121101001 is 1001011213.

It can be written as a sum of positive squares in 4 ways, for example, as 170981776 + 2950119225 = 13076^2 + 54315^2 .

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 3121101001 - 2¹⁹ = 3120576713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121101031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378361 + ... + 386521.

It is an arithmetic number, because the mean of its divisors is an integer number (391861701).

Almost surely, 2^3121101001 is an apocalyptic number.

It is an amenable number.

3121101001 is a deficient number, since it is larger than the sum of its proper divisors (13792607).

3121101001 is a wasteful number, since it uses less digits than its factorization.

3121101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9803.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 3121101001 is about 55866.8148456667. The cubic root of 3121101001 is about 1461.4005764655.

Adding to 3121101001 its reverse (1001011213), we get a palindrome (4122112214).

The spelling of 3121101001 in words is "three billion, one hundred twenty-one million, one hundred one thousand, one".