5072810121 has 12 divisors (see below), whose sum is σ = 7332475072. Its totient is φ = 3379527576.

The previous prime is 5072810111. The next prime is 5072810129. The reversal of 5072810121 is 1210182705.

5072810121 is a `hidden beast` number, since 507 + 28 + 10 + 121 = 666.

It is not a de Polignac number, because 5072810121 - 2⁵ = 5072810089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5072810129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181741 + ... + 207786.

Almost surely, 2^5072810121 is an apocalyptic number.

It is an amenable number.

5072810121 is a deficient number, since it is larger than the sum of its proper divisors (2259664951).

5072810121 is a wasteful number, since it uses less digits than its factorization.

5072810121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390980 (or 390977 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 5072810121 is about 71223.6626480273. The cubic root of 5072810121 is about 1718.2362171092.

Adding to 5072810121 its reverse (1210182705), we get a palindrome (6282992826).

The spelling of 5072810121 in words is "five billion, seventy-two million, eight hundred ten thousand, one hundred twenty-one".