211230340424 has 32 divisors (see below), whose sum is σ = 399816933120. Its totient is φ = 104613686016.

The previous prime is 211230340423. The next prime is 211230340427. The reversal of 211230340424 is 424043032112.

It is a junction number, because it is equal to n+sod(n) for n = 211230340393 and 211230340402.

It is not an unprimeable number, because it can be changed into a prime (211230340423) 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, 1357229 + ... + 1504835.

It is an arithmetic number, because the mean of its divisors is an integer number (12494279160).

Almost surely, 2^211230340424 is an apocalyptic number.

It is an amenable number.

211230340424 is a deficient number, since it is larger than the sum of its proper divisors (188586592696).

211230340424 is a wasteful number, since it uses less digits than its factorization.

211230340424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149309 (or 149305 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 211230340424 its reverse (424043032112), we get a palindrome (635273372536).

The spelling of 211230340424 in words is "two hundred eleven billion, two hundred thirty million, three hundred forty thousand, four hundred twenty-four".