21122043113 has 8 divisors (see below), whose sum is σ = 21219219648. Its totient is φ = 21024994864.

The previous prime is 21122043079. The next prime is 21122043127. The reversal of 21122043113 is 31134022112.

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 21122043113 - 2⁶ = 21122043049 is a prime.

It is a super-3 number, since 3×21122043113³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21122043143) 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, 306131 + ... + 368727.

It is an arithmetic number, because the mean of its divisors is an integer number (2652402456).

Almost surely, 2^21122043113 is an apocalyptic number.

It is an amenable number.

21122043113 is a deficient number, since it is larger than the sum of its proper divisors (97176535).

21122043113 is a wasteful number, since it uses less digits than its factorization.

21122043113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64143.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21122043113 its reverse (31134022112), we get a palindrome (52256065225).

The spelling of 21122043113 in words is "twenty-one billion, one hundred twenty-two million, forty-three thousand, one hundred thirteen".