21623125022107 has 4 divisors (see below), whose sum is σ = 24712142882416. Its totient is φ = 18534107161800.

The previous prime is 21623125022063. The next prime is 21623125022123. The reversal of 21623125022107 is 70122052132612.

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

It is a cyclic number.

It is not a de Polignac number, because 21623125022107 - 2²³ = 21623116633499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21623125022207) 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, 1544508930144 + ... + 1544508930157.

It is an arithmetic number, because the mean of its divisors is an integer number (6178035720604).

Almost surely, 2^{21623125022107} is an apocalyptic number.

21623125022107 is a deficient number, since it is larger than the sum of its proper divisors (3089017860309).

21623125022107 is an equidigital number, since it uses as much as digits as its factorization.

21623125022107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089017860308.

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 21623125022107 its reverse (70122052132612), we get a palindrome (91745177154719).

The spelling of 21623125022107 in words is "twenty-one trillion, six hundred twenty-three billion, one hundred twenty-five million, twenty-two thousand, one hundred seven".