21114405442355 has 8 divisors (see below), whose sum is σ = 25354325737152. Its totient is φ = 16880164883008.

The previous prime is 21114405442327. The next prime is 21114405442399. The reversal of 21114405442355 is 55324450441112.

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

It is a cyclic number.

It is not a de Polignac number, because 21114405442355 - 2⁸ = 21114405442099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1419925682 + ... + 1419940551.

It is an arithmetic number, because the mean of its divisors is an integer number (3169290717144).

Almost surely, 2^{21114405442355} is an apocalyptic number.

21114405442355 is a deficient number, since it is larger than the sum of its proper divisors (4239920294797).

21114405442355 is a wasteful number, since it uses less digits than its factorization.

21114405442355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839867725.

The product of its (nonzero) digits is 384000, while the sum is 41.

Adding to 21114405442355 its reverse (55324450441112), we get a palindrome (76438855883467).

The spelling of 21114405442355 in words is "twenty-one trillion, one hundred fourteen billion, four hundred five million, four hundred forty-two thousand, three hundred fifty-five".