21403014122054 has 16 divisors (see below), whose sum is σ = 33229267772400. Its totient is φ = 10326984734304.

The previous prime is 21403014122051. The next prime is 21403014122093. The reversal of 21403014122054 is 45022141030412.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21403014122051) 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 7 ways as a sum of consecutive naturals, for example, 98190944 + ... + 98408675.

It is an arithmetic number, because the mean of its divisors is an integer number (2076829235775).

Almost surely, 2^{21403014122054} is an apocalyptic number.

21403014122054 is a deficient number, since it is larger than the sum of its proper divisors (11826253650346).

21403014122054 is a wasteful number, since it uses less digits than its factorization.

21403014122054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196601527.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 21403014122054 its reverse (45022141030412), we get a palindrome (66425155152466).

The spelling of 21403014122054 in words is "twenty-one trillion, four hundred three billion, fourteen million, one hundred twenty-two thousand, fifty-four".