521131040002 has 16 divisors (see below), whose sum is σ = 788961583872. Its totient is φ = 258150400560.

The previous prime is 521131039999. The next prime is 521131040009. The reversal of 521131040002 is 200040131125.

It is a super-2 number, since 2×521131040002² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (521131040009) 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, 1479393 + ... + 1797460.

It is an arithmetic number, because the mean of its divisors is an integer number (49310098992).

Almost surely, 2^521131040002 is an apocalyptic number.

521131040002 is a deficient number, since it is larger than the sum of its proper divisors (267830543870).

521131040002 is a wasteful number, since it uses less digits than its factorization.

521131040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277593.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 521131040002 its reverse (200040131125), we get a palindrome (721171171127).

The spelling of 521131040002 in words is "five hundred twenty-one billion, one hundred thirty-one million, forty thousand, two".