521041131 has 24 divisors (see below), whose sum is σ = 813548736. Its totient is φ = 319438080.

The previous prime is 521041121. The next prime is 521041133. The reversal of 521041131 is 131140125.

It is not a de Polignac number, because 521041131 - 2⁵ = 521041099 is a prime.

It is a super-2 number, since 2×521041131² = 542967720387518322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (521041133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23491 + ... + 39923.

It is an arithmetic number, because the mean of its divisors is an integer number (33897864).

Almost surely, 2^521041131 is an apocalyptic number.

521041131 is a deficient number, since it is larger than the sum of its proper divisors (292507605).

521041131 is a wasteful number, since it uses less digits than its factorization.

521041131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16723 (or 16720 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 521041131 is about 22826.3253941584. The cubic root of 521041131 is about 804.6814737131.

Adding to 521041131 its reverse (131140125), we get a palindrome (652181256).

It can be divided in two parts, 52104 and 1131, that added together give a palindrome (53235).

The spelling of 521041131 in words is "five hundred twenty-one million, forty-one thousand, one hundred thirty-one".