512454512502101 has 4 divisors (see below), whose sum is σ = 551874090386892. Its totient is φ = 473034934617312.

The previous prime is 512454512502083. The next prime is 512454512502139. The reversal of 512454512502101 is 101205215454215.

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

It can be written as a sum of positive squares in 2 ways, for example, as 263781482305201 + 248673030196900 = 16241351^2 + 15769370^2 .

It is a cyclic number.

It is not a de Polignac number, because 512454512502101 - 2¹⁴ = 512454512485717 is a prime.

It is a super-2 number, since 2×512454512502101² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512454512502161) 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, 19709788942376 + ... + 19709788942401.

It is an arithmetic number, because the mean of its divisors is an integer number (137968522596723).

Almost surely, 2^{512454512502101} is an apocalyptic number.

It is an amenable number.

512454512502101 is a deficient number, since it is larger than the sum of its proper divisors (39419577884791).

512454512502101 is a wasteful number, since it uses less digits than its factorization.

512454512502101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39419577884790.

The product of its (nonzero) digits is 80000, while the sum is 38.

Adding to 512454512502101 its reverse (101205215454215), we get a palindrome (613659727956316).

The spelling of 512454512502101 in words is "five hundred twelve trillion, four hundred fifty-four billion, five hundred twelve million, five hundred two thousand, one hundred one".