5121211305 has 16 divisors (see below), whose sum is σ = 9364500864. Its totient is φ = 2341125120.

The previous prime is 5121211283. The next prime is 5121211331. The reversal of 5121211305 is 5031121215.

It is not a de Polignac number, because 5121211305 - 2⁷ = 5121211177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24386616 + ... + 24386825.

It is an arithmetic number, because the mean of its divisors is an integer number (585281304).

Almost surely, 2^5121211305 is an apocalyptic number.

It is an amenable number.

5121211305 is a deficient number, since it is larger than the sum of its proper divisors (4243289559).

5121211305 is a wasteful number, since it uses less digits than its factorization.

5121211305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48773456.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 5121211305 is about 71562.6390304326. The cubic root of 5121211305 is about 1723.6836620118.

The spelling of 5121211305 in words is "five billion, one hundred twenty-one million, two hundred eleven thousand, three hundred five".