21114311051123 has 16 divisors (see below), whose sum is σ = 21710097208800. Its totient is φ = 20523439620096.

The previous prime is 21114311051107. The next prime is 21114311051137. The reversal of 21114311051123 is 32115011341112.

It is a cyclic number.

It is not a de Polignac number, because 21114311051123 - 2⁴ = 21114311051107 is a prime.

It is a super-2 number, since 2×21114311051123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21114311051092 and 21114311051101.

It is not an unprimeable number, because it can be changed into a prime (21114311051923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10681811 + ... + 12503187.

It is an arithmetic number, because the mean of its divisors is an integer number (1356881075550).

Almost surely, 2^{21114311051123} is an apocalyptic number.

21114311051123 is a deficient number, since it is larger than the sum of its proper divisors (595786157677).

21114311051123 is a wasteful number, since it uses less digits than its factorization.

21114311051123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822726.

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 21114311051123 its reverse (32115011341112), we get a palindrome (53229322392235).

The spelling of 21114311051123 in words is "twenty-one trillion, one hundred fourteen billion, three hundred eleven million, fifty-one thousand, one hundred twenty-three".