211403004352445 has 16 divisors (see below), whose sum is σ = 253972828961280. Its totient is φ = 168929659198464.

The previous prime is 211403004352427. The next prime is 211403004352469. The reversal of 211403004352445 is 544253400304112.

211403004352445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 211403004352445 - 2²⁸ = 211402735916989 is a prime.

It is a super-2 number, since 2×211403004352445² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211403004352399 and 211403004352408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19185152 + ... + 28122518.

It is an arithmetic number, because the mean of its divisors is an integer number (15873301810080).

Almost surely, 2^{211403004352445} is an apocalyptic number.

It is an amenable number.

211403004352445 is a deficient number, since it is larger than the sum of its proper divisors (42569824608835).

211403004352445 is a wasteful number, since it uses less digits than its factorization.

211403004352445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8942764.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 211403004352445 its reverse (544253400304112), we get a palindrome (755656404656557).

The spelling of 211403004352445 in words is "two hundred eleven trillion, four hundred three billion, four million, three hundred fifty-two thousand, four hundred forty-five".