513541200014121 has 4 divisors (see below), whose sum is σ = 684721600018832. Its totient is φ = 342360800009412.

The previous prime is 513541200014083. The next prime is 513541200014131. The reversal of 513541200014121 is 121410002145315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 513541200014121 - 2¹⁴ = 513541199997737 is a prime.

It is a super-2 number, since 2×513541200014121² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513541200014131) 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, 85590200002351 + ... + 85590200002356.

It is an arithmetic number, because the mean of its divisors is an integer number (171180400004708).

Almost surely, 2^{513541200014121} is an apocalyptic number.

It is an amenable number.

513541200014121 is a deficient number, since it is larger than the sum of its proper divisors (171180400004711).

513541200014121 is a wasteful number, since it uses less digits than its factorization.

513541200014121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171180400004710.

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 513541200014121 its reverse (121410002145315), we get a palindrome (634951202159436).

The spelling of 513541200014121 in words is "five hundred thirteen trillion, five hundred forty-one billion, two hundred million, fourteen thousand, one hundred twenty-one".