3121484305 has 8 divisors (see below), whose sum is σ = 3746097000. Its totient is φ = 2496976896.

The previous prime is 3121484299. The next prime is 3121484321. The reversal of 3121484305 is 5034841213.

It can be written as a sum of positive squares in 4 ways, for example, as 66048129 + 3055436176 = 8127^2 + 55276^2 .

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 3121484305 - 2¹¹ = 3121482257 is a prime.

It is a super-2 number, since 2×3121484305² = 19487328532722666050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72951 + ... + 107539.

It is an arithmetic number, because the mean of its divisors is an integer number (468262125).

Almost surely, 2^3121484305 is an apocalyptic number.

It is an amenable number.

3121484305 is a deficient number, since it is larger than the sum of its proper divisors (624612695).

3121484305 is a wasteful number, since it uses less digits than its factorization.

3121484305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52643.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 3121484305 is about 55870.2452563079. The cubic root of 3121484305 is about 1461.4603991324.

The spelling of 3121484305 in words is "three billion, one hundred twenty-one million, four hundred eighty-four thousand, three hundred five".