21014341020123 has 32 divisors (see below), whose sum is σ = 30599716460544. Its totient is φ = 12722052000000.

The previous prime is 21014341020103. The next prime is 21014341020133. The reversal of 21014341020123 is 32102014341012.

It is not a de Polignac number, because 21014341020123 - 2¹⁸ = 21014340757979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21014341020093 and 21014341020102.

It is not an unprimeable number, because it can be changed into a prime (21014341020103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163661398 + ... + 163789748.

It is an arithmetic number, because the mean of its divisors is an integer number (956241139392).

Almost surely, 2^{21014341020123} is an apocalyptic number.

21014341020123 is a deficient number, since it is larger than the sum of its proper divisors (9585375440421).

21014341020123 is a wasteful number, since it uses less digits than its factorization.

21014341020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133747.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21014341020123 its reverse (32102014341012), we get a palindrome (53116355361135).

The spelling of 21014341020123 in words is "twenty-one trillion, fourteen billion, three hundred forty-one million, twenty thousand, one hundred twenty-three".