5121011011 has 4 divisors (see below), whose sum is σ = 5259416752. Its totient is φ = 4982605272.

The previous prime is 5121011003. The next prime is 5121011029. The reversal of 5121011011 is 1101101215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5121011011 - 2³ = 5121011003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5121010982 and 5121011000.

It is not an unprimeable number, because it can be changed into a prime (5121011611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69202815 + ... + 69202888.

It is an arithmetic number, because the mean of its divisors is an integer number (1314854188).

Almost surely, 2^5121011011 is an apocalyptic number.

5121011011 is a deficient number, since it is larger than the sum of its proper divisors (138405741).

5121011011 is a wasteful number, since it uses less digits than its factorization.

5121011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138405740.

The product of its (nonzero) digits is 10, while the sum is 13.

The square root of 5121011011 is about 71561.2395854068. The cubic root of 5121011011 is about 1723.6611902452.

Adding to 5121011011 its reverse (1101101215), we get a palindrome (6222112226).

The spelling of 5121011011 in words is "five billion, one hundred twenty-one million, eleven thousand, eleven".