53321240123111 has 4 divisors (see below), whose sum is σ = 53321421494712. Its totient is φ = 53321058751512.

The previous prime is 53321240123029. The next prime is 53321240123117. The reversal of 53321240123111 is 11132104212335.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53321240123111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53321240123117) 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, 90244100 + ... + 90833033.

It is an arithmetic number, because the mean of its divisors is an integer number (13330355373678).

Almost surely, 2^{53321240123111} is an apocalyptic number.

53321240123111 is a deficient number, since it is larger than the sum of its proper divisors (181371601).

53321240123111 is a wasteful number, since it uses less digits than its factorization.

53321240123111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181371600.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 53321240123111 its reverse (11132104212335), we get a palindrome (64453344335446).

The spelling of 53321240123111 in words is "fifty-three trillion, three hundred twenty-one billion, two hundred forty million, one hundred twenty-three thousand, one hundred eleven".