21136276663123 has 8 divisors (see below), whose sum is σ = 22112472110400. Its totient is φ = 20182018192320.

The previous prime is 21136276663111. The next prime is 21136276663147. The reversal of 21136276663123 is 32136667263112.

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 21136276663123 - 2¹³ = 21136276654931 is a prime.

It is a super-2 number, since 2×21136276663123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21136276633123) 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, 5484242148 + ... + 5484246001.

It is an arithmetic number, because the mean of its divisors is an integer number (2764059013800).

Almost surely, 2^{21136276663123} is an apocalyptic number.

21136276663123 is a deficient number, since it is larger than the sum of its proper divisors (976195447277).

21136276663123 is a wasteful number, since it uses less digits than its factorization.

21136276663123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10968488237.

The product of its digits is 1959552, while the sum is 49.

The spelling of 21136276663123 in words is "twenty-one trillion, one hundred thirty-six billion, two hundred seventy-six million, six hundred sixty-three thousand, one hundred twenty-three".