521232061402 has 16 divisors (see below), whose sum is σ = 854557274592. Its totient is φ = 236978066160.

The previous prime is 521232061393. The next prime is 521232061417. The reversal of 521232061402 is 204160232125.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149605624 + ... + 149609107.

It is an arithmetic number, because the mean of its divisors is an integer number (53409829662).

Almost surely, 2^521232061402 is an apocalyptic number.

521232061402 is a deficient number, since it is larger than the sum of its proper divisors (333325213190).

521232061402 is a wasteful number, since it uses less digits than its factorization.

521232061402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299214813.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 521232061402 its reverse (204160232125), we get a palindrome (725392293527).

The spelling of 521232061402 in words is "five hundred twenty-one billion, two hundred thirty-two million, sixty-one thousand, four hundred two".