521130312011 has 8 divisors (see below), whose sum is σ = 540856359120. Its totient is φ = 501521334048.

The previous prime is 521130311963. The next prime is 521130312061. The reversal of 521130312011 is 110213031125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-521130312011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (521130312061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29258216 + ... + 29276021.

It is an arithmetic number, because the mean of its divisors is an integer number (67607044890).

Almost surely, 2^521130312011 is an apocalyptic number.

521130312011 is a deficient number, since it is larger than the sum of its proper divisors (19726047109).

521130312011 is a wasteful number, since it uses less digits than its factorization.

521130312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58534573.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 521130312011 its reverse (110213031125), we get a palindrome (631343343136).

The spelling of 521130312011 in words is "five hundred twenty-one billion, one hundred thirty million, three hundred twelve thousand, eleven".