521034311 has 16 divisors (see below), whose sum is σ = 612057600. Its totient is φ = 434252448.

The previous prime is 521034289. The next prime is 521034317. The reversal of 521034311 is 113430125.

It is not a de Polignac number, because 521034311 - 2⁶ = 521034247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521034317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65150 + ... + 72708.

It is an arithmetic number, because the mean of its divisors is an integer number (38253600).

Almost surely, 2^521034311 is an apocalyptic number.

521034311 is a deficient number, since it is larger than the sum of its proper divisors (91023289).

521034311 is a wasteful number, since it uses less digits than its factorization.

521034311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7838.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 521034311 is about 22826.1760047538. The cubic root of 521034311 is about 804.6779628248.

Adding to 521034311 its reverse (113430125), we get a palindrome (634464436).

The spelling of 521034311 in words is "five hundred twenty-one million, thirty-four thousand, three hundred eleven".