211400030 has 8 divisors (see below), whose sum is σ = 380520072. Its totient is φ = 84560008.

The previous prime is 211400027. The next prime is 211400081. The reversal of 211400030 is 30004112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 211399984 and 211400020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10569992 + ... + 10570011.

It is an arithmetic number, because the mean of its divisors is an integer number (47565009).

Almost surely, 2^211400030 is an apocalyptic number.

211400030 is a deficient number, since it is larger than the sum of its proper divisors (169120042).

211400030 is a wasteful number, since it uses less digits than its factorization.

211400030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21140010.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 211400030 is about 14539.6021266058. The cubic root of 211400030 is about 595.7101705538.

Adding to 211400030 its reverse (30004112), we get a palindrome (241404142).

The spelling of 211400030 in words is "two hundred eleven million, four hundred thousand, thirty".