212023132123 has 16 divisors (see below), whose sum is σ = 251867116800. Its totient is φ = 176306971680.

The previous prime is 212023132121. The next prime is 212023132141. The reversal of 212023132123 is 321231320212.

It is a cyclic number.

It is not a de Polignac number, because 212023132123 - 2¹ = 212023132121 is a prime.

It is a super-2 number, since 2×212023132123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212023132094 and 212023132103.

It is not an unprimeable number, because it can be changed into a prime (212023132121) 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, 17484711 + ... + 17496832.

It is an arithmetic number, because the mean of its divisors is an integer number (15741694800).

Almost surely, 2^212023132123 is an apocalyptic number.

212023132123 is a deficient number, since it is larger than the sum of its proper divisors (39843984677).

212023132123 is a wasteful number, since it uses less digits than its factorization.

212023132123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34981602.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212023132123 its reverse (321231320212), we get a palindrome (533254452335).

The spelling of 212023132123 in words is "two hundred twelve billion, twenty-three million, one hundred thirty-two thousand, one hundred twenty-three".