211423123130 has 16 divisors (see below), whose sum is σ = 380568865320. Its totient is φ = 84567639552.

The previous prime is 211423123129. The next prime is 211423123133. The reversal of 211423123130 is 31321324112.

It can be written as a sum of positive squares in 4 ways, for example, as 211133817049 + 289306081 = 459493^2 + 17009^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211423123096 and 211423123105.

It is not an unprimeable number, because it can be changed into a prime (211423123133) 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, 451142 + ... + 791438.

Almost surely, 2^211423123130 is an apocalyptic number.

211423123130 is a deficient number, since it is larger than the sum of its proper divisors (169145742190).

211423123130 is a wasteful number, since it uses less digits than its factorization.

211423123130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402433.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 211423123130 its reverse (31321324112), we get a palindrome (242744447242).

The spelling of 211423123130 in words is "two hundred eleven billion, four hundred twenty-three million, one hundred twenty-three thousand, one hundred thirty".