515071020113 has 8 divisors (see below), whose sum is σ = 554750407848. Its totient is φ = 475399995264.

The previous prime is 515071020091. The next prime is 515071020133. The reversal of 515071020113 is 311020170515.

It can be written as a sum of positive squares in 4 ways, for example, as 77188397584 + 437882622529 = 277828^2 + 661727^2 .

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 515071020113 - 2²⁶ = 515003911249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (515071020133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1962506 + ... + 2209427.

It is an arithmetic number, because the mean of its divisors is an integer number (69343800981).

Almost surely, 2^515071020113 is an apocalyptic number.

It is an amenable number.

515071020113 is a deficient number, since it is larger than the sum of its proper divisors (39679387735).

515071020113 is a wasteful number, since it uses less digits than its factorization.

515071020113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4181443.

The product of its (nonzero) digits is 1050, while the sum is 26.

Adding to 515071020113 its reverse (311020170515), we get a palindrome (826091190628).

The spelling of 515071020113 in words is "five hundred fifteen billion, seventy-one million, twenty thousand, one hundred thirteen".