521131324114 has 4 divisors (see below), whose sum is σ = 781696986174. Its totient is φ = 260565662056.

The previous prime is 521131324067. The next prime is 521131324123. The reversal of 521131324114 is 411423131125.

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

It can be written as a sum of positive squares in only one way, i.e., 448411033225 + 72720290889 = 669635^2 + 269667^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130282831027 + ... + 130282831030.

Almost surely, 2^521131324114 is an apocalyptic number.

521131324114 is a deficient number, since it is larger than the sum of its proper divisors (260565662060).

521131324114 is a wasteful number, since it uses less digits than its factorization.

521131324114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260565662059.

The product of its digits is 2880, while the sum is 28.

Adding to 521131324114 its reverse (411423131125), we get a palindrome (932554455239).

The spelling of 521131324114 in words is "five hundred twenty-one billion, one hundred thirty-one million, three hundred twenty-four thousand, one hundred fourteen".