512121142513 has 24 divisors (see below), whose sum is σ = 568142467200. Its totient is φ = 459986254464.

The previous prime is 512121142499. The next prime is 512121142523. The reversal of 512121142513 is 315241121215.

It is a de Polignac number, because none of the positive numbers 2^k-512121142513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (512121142523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3883068 + ... + 4012786.

It is an arithmetic number, because the mean of its divisors is an integer number (23672602800).

Almost surely, 2^512121142513 is an apocalyptic number.

It is an amenable number.

512121142513 is a deficient number, since it is larger than the sum of its proper divisors (56021324687).

512121142513 is a wasteful number, since it uses less digits than its factorization.

512121142513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130221 (or 130198 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

Adding to 512121142513 its reverse (315241121215), we get a palindrome (827362263728).

The spelling of 512121142513 in words is "five hundred twelve billion, one hundred twenty-one million, one hundred forty-two thousand, five hundred thirteen".