3121001121 has 16 divisors (see below), whose sum is σ = 4756619264. Its totient is φ = 1783126224.

The previous prime is 3121001119. The next prime is 3121001129. The reversal of 3121001121 is 1211001213.

It is not a de Polignac number, because 3121001121 - 2¹ = 3121001119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3121001097 and 3121001106.

It is not an unprimeable number, because it can be changed into a prime (3121001129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188250 + ... + 204156.

It is an arithmetic number, because the mean of its divisors is an integer number (297288704).

Almost surely, 2^3121001121 is an apocalyptic number.

It is an amenable number.

3121001121 is a deficient number, since it is larger than the sum of its proper divisors (1635618143).

3121001121 is a wasteful number, since it uses less digits than its factorization.

3121001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25260.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 3121001121 is about 55865.9209268047. The cubic root of 3121001121 is about 1461.3849872822.

Adding to 3121001121 its reverse (1211001213), we get a palindrome (4332002334).

The spelling of 3121001121 in words is "three billion, one hundred twenty-one million, one thousand, one hundred twenty-one".