23438561053 has 4 divisors (see below), whose sum is σ = 23880798108. Its totient is φ = 22996324000.

The previous prime is 23438560997. The next prime is 23438561087. The reversal of 23438561053 is 35016583432.

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 16129508004 + 7309053049 = 127002^2 + 85493^2 .

It is a cyclic number.

It is not a de Polignac number, because 23438561053 - 2²¹ = 23436463901 is a prime.

It is a super-2 number, since 2×23438561053² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23438560997 and 23438561015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23438561093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221118448 + ... + 221118553.

It is an arithmetic number, because the mean of its divisors is an integer number (5970199527).

Almost surely, 2^23438561053 is an apocalyptic number.

It is an amenable number.

23438561053 is a deficient number, since it is larger than the sum of its proper divisors (442237055).

23438561053 is an equidigital number, since it uses as much as digits as its factorization.

23438561053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442237054.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 23438561053 in words is "twenty-three billion, four hundred thirty-eight million, five hundred sixty-one thousand, fifty-three".