553120340211121 has 4 divisors (see below), whose sum is σ = 553120468934644. Its totient is φ = 553120211487600.

The previous prime is 553120340211029. The next prime is 553120340211157. The reversal of 553120340211121 is 121112043021355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 297477463576225 + 255642876634896 = 17247535^2 + 15988836^2 .

It is a cyclic number.

It is not a de Polignac number, because 553120340211121 - 2¹⁵ = 553120340178353 is a prime.

It is a super-2 number, since 2×553120340211121² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553120340211221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57685470 + ... + 66587191.

It is an arithmetic number, because the mean of its divisors is an integer number (138280117233661).

Almost surely, 2^{553120340211121} is an apocalyptic number.

It is an amenable number.

553120340211121 is a deficient number, since it is larger than the sum of its proper divisors (128723523).

553120340211121 is a wasteful number, since it uses less digits than its factorization.

553120340211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128723522.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 553120340211121 its reverse (121112043021355), we get a palindrome (674232383232476).

The spelling of 553120340211121 in words is "five hundred fifty-three trillion, one hundred twenty billion, three hundred forty million, two hundred eleven thousand, one hundred twenty-one".