530021011121 has 12 divisors (see below), whose sum is σ = 617580970020. Its totient is φ = 453547785600.

The previous prime is 530021011103. The next prime is 530021011183. The reversal of 530021011121 is 121110120035.

It can be written as a sum of positive squares in 2 ways, for example, as 368285128225 + 161735882896 = 606865^2 + 402164^2 .

It is not a de Polignac number, because 530021011121 - 2⁶ = 530021011057 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 530021011121.

It is not an unprimeable number, because it can be changed into a prime (530021011621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8969516 + ... + 9028413.

It is an arithmetic number, because the mean of its divisors is an integer number (51465080835).

Almost surely, 2^530021011121 is an apocalyptic number.

It is an amenable number.

530021011121 is a deficient number, since it is larger than the sum of its proper divisors (87559958899).

530021011121 is a wasteful number, since it uses less digits than its factorization.

530021011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17998544 (or 17998537 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 530021011121 its reverse (121110120035), we get a palindrome (651131131156).

The spelling of 530021011121 in words is "five hundred thirty billion, twenty-one million, eleven thousand, one hundred twenty-one".