21113161031026 has 8 divisors (see below), whose sum is σ = 31718994645744. Its totient is φ = 10540162815780.

The previous prime is 21113161030999. The next prime is 21113161031041. The reversal of 21113161031026 is 62013016131112.

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

It is a super-2 number, since 2×21113161031026² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21113161030985 and 21113161031003.

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, 8208848260 + ... + 8208850831.

It is an arithmetic number, because the mean of its divisors is an integer number (3964874330718).

Almost surely, 2^{21113161031026} is an apocalyptic number.

21113161031026 is a deficient number, since it is larger than the sum of its proper divisors (10605833614718).

21113161031026 is a wasteful number, since it uses less digits than its factorization.

21113161031026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16417699736.

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 21113161031026 its reverse (62013016131112), we get a palindrome (83126177162138).

The spelling of 21113161031026 in words is "twenty-one trillion, one hundred thirteen billion, one hundred sixty-one million, thirty-one thousand, twenty-six".