10421523113 has 4 divisors (see below), whose sum is σ = 10454819028. Its totient is φ = 10388227200.

The previous prime is 10421523103. The next prime is 10421523127. The reversal of 10421523113 is 31132512401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31132512401 = 8837 ⋅3522973.

It can be written as a sum of positive squares in 2 ways, for example, as 1807270144 + 8614252969 = 42512^2 + 92813^2 .

It is a cyclic number.

It is not a de Polignac number, because 10421523113 - 2²² = 10417328809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10421523103) 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, 16647488 + ... + 16648113.

It is an arithmetic number, because the mean of its divisors is an integer number (2613704757).

Almost surely, 2^10421523113 is an apocalyptic number.

It is an amenable number.

10421523113 is a deficient number, since it is larger than the sum of its proper divisors (33295915).

10421523113 is an equidigital number, since it uses as much as digits as its factorization.

10421523113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33295914.

The product of its (nonzero) digits is 720, while the sum is 23.

The spelling of 10421523113 in words is "ten billion, four hundred twenty-one million, five hundred twenty-three thousand, one hundred thirteen".