21263223162106 has 8 divisors (see below), whose sum is σ = 31898361789504. Its totient is φ = 10630435898940.

The previous prime is 21263223162061. The next prime is 21263223162143. The reversal of 21263223162106 is 60126132236212.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587818450 + ... + 587854621.

It is an arithmetic number, because the mean of its divisors is an integer number (3987295223688).

Almost surely, 2^{21263223162106} is an apocalyptic number.

21263223162106 is a deficient number, since it is larger than the sum of its proper divisors (10635138627398).

21263223162106 is a wasteful number, since it uses less digits than its factorization.

21263223162106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175682116.

The product of its (nonzero) digits is 62208, while the sum is 37.

Adding to 21263223162106 its reverse (60126132236212), we get a palindrome (81389355398318).

The spelling of 21263223162106 in words is "twenty-one trillion, two hundred sixty-three billion, two hundred twenty-three million, one hundred sixty-two thousand, one hundred six".