21103140000523 has 8 divisors (see below), whose sum is σ = 24423163834880. Its totient is φ = 17859438553320.

The previous prime is 21103140000457. The next prime is 21103140000539. The reversal of 21103140000523 is 32500004130112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21103140000523 - 2¹³ = 21103139992331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21103140000494 and 21103140000503.

It is not an unprimeable number, because it can be changed into a prime (21103140030523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19080596193 + ... + 19080597298.

It is an arithmetic number, because the mean of its divisors is an integer number (3052895479360).

Almost surely, 2^{21103140000523} is an apocalyptic number.

21103140000523 is a deficient number, since it is larger than the sum of its proper divisors (3320023834357).

21103140000523 is an equidigital number, since it uses as much as digits as its factorization.

21103140000523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38161193577.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 21103140000523 its reverse (32500004130112), we get a palindrome (53603144130635).

The spelling of 21103140000523 in words is "twenty-one trillion, one hundred three billion, one hundred forty million, five hundred twenty-three", and thus it is an aban number.