3121103020 has 72 divisors (see below), whose sum is σ = 8025741360. Its totient is φ = 1013765760.

The previous prime is 3121102991. The next prime is 3121103087. The reversal of 3121103020 is 203011213.

It is a super-2 number, since 2×3121103020² = 19482568122906240800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65191 + ... + 102430.

It is an arithmetic number, because the mean of its divisors is an integer number (111468630).

Almost surely, 2^3121103020 is an apocalyptic number.

It is an amenable number.

3121103020 is an abundant number, since it is smaller than the sum of its proper divisors (4904638340).

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

3121103020 is a wasteful number, since it uses less digits than its factorization.

3121103020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167663 (or 167654 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3121103020 is about 55866.8329154249. The cubic root of 3121103020 is about 1461.4008915858.

Adding to 3121103020 its reverse (203011213), we get a palindrome (3324114233).

The spelling of 3121103020 in words is "three billion, one hundred twenty-one million, one hundred three thousand, twenty".