3121201248 has 48 divisors (see below), whose sum is σ = 8937988416. Its totient is φ = 945818240.

The previous prime is 3121201189. The next prime is 3121201313. The reversal of 3121201248 is 8421021213.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1476786 + ... + 1478897.

It is an arithmetic number, because the mean of its divisors is an integer number (186208092).

Almost surely, 2^3121201248 is an apocalyptic number.

It is an amenable number.

3121201248 is an abundant number, since it is smaller than the sum of its proper divisors (5816787168).

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

3121201248 is a wasteful number, since it uses less digits than its factorization.

3121201248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955707 (or 2955699 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 3121201248 is about 55867.7120347701. The cubic root of 3121201248 is about 1461.4162225954.

The spelling of 3121201248 in words is "three billion, one hundred twenty-one million, two hundred one thousand, two hundred forty-eight".