212011123023 has 12 divisors (see below), whose sum is σ = 349986615888. Its totient is φ = 121149213120.

The previous prime is 212011123013. The next prime is 212011123031. The reversal of 212011123023 is 320321110212.

It is not a de Polignac number, because 212011123023 - 2¹⁰ = 212011121999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212011122987 and 212011123005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011123013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1682627898 + ... + 1682628023.

It is an arithmetic number, because the mean of its divisors is an integer number (29165551324).

Almost surely, 2^212011123023 is an apocalyptic number.

212011123023 is a deficient number, since it is larger than the sum of its proper divisors (137975492865).

212011123023 is a wasteful number, since it uses less digits than its factorization.

212011123023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365255934 (or 3365255931 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212011123023 its reverse (320321110212), we get a palindrome (532332233235).

The spelling of 212011123023 in words is "two hundred twelve billion, eleven million, one hundred twenty-three thousand, twenty-three".