211331132123 has 8 divisors (see below), whose sum is σ = 212874384240. Its totient is φ = 209788207200.

The previous prime is 211331132107. The next prime is 211331132141. The reversal of 211331132123 is 321231133112.

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 211331132123 - 2⁴ = 211331132107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211331132153) 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, 1299461 + ... + 1453017.

It is an arithmetic number, because the mean of its divisors is an integer number (26609298030).

Almost surely, 2^211331132123 is an apocalyptic number.

211331132123 is a deficient number, since it is larger than the sum of its proper divisors (1543252117).

211331132123 is a wasteful number, since it uses less digits than its factorization.

211331132123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163597.

The product of its digits is 648, while the sum is 23.

Adding to 211331132123 its reverse (321231133112), we get a palindrome (532562265235).

The spelling of 211331132123 in words is "two hundred eleven billion, three hundred thirty-one million, one hundred thirty-two thousand, one hundred twenty-three".