211021134000123 has 32 divisors (see below), whose sum is σ = 293352414600960. Its totient is φ = 134809387090560.

The previous prime is 211021134000113. The next prime is 211021134000169. The reversal of 211021134000123 is 321000431120112.

It is not a de Polignac number, because 211021134000123 - 2⁶ = 211021134000059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211021134000123.

It is not an unprimeable number, because it can be changed into a prime (211021134000113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130597333 + ... + 132203273.

It is an arithmetic number, because the mean of its divisors is an integer number (9167262956280).

Almost surely, 2^{211021134000123} is an apocalyptic number.

211021134000123 is a deficient number, since it is larger than the sum of its proper divisors (82331280600837).

211021134000123 is a wasteful number, since it uses less digits than its factorization.

211021134000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625259.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 211021134000123 its reverse (321000431120112), we get a palindrome (532021565120235).

The spelling of 211021134000123 in words is "two hundred eleven trillion, twenty-one billion, one hundred thirty-four million, one hundred twenty-three", and thus it is an aban number.