211403620413 has 16 divisors (see below), whose sum is σ = 313208078400. Its totient is φ = 140927858640.

The previous prime is 211403620369. The next prime is 211403620433. The reversal of 211403620413 is 314026304112.

It is a happy number.

211403620413 is a `hidden beast` number, since 21 + 1 + 4 + 0 + 3 + 620 + 4 + 13 = 666.

It is not a de Polignac number, because 211403620413 - 2¹⁶ = 211403554877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211403620433) 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, 294058 + ... + 713636.

It is an arithmetic number, because the mean of its divisors is an integer number (19575504900).

Almost surely, 2^211403620413 is an apocalyptic number.

It is an amenable number.

211403620413 is a deficient number, since it is larger than the sum of its proper divisors (101804457987).

211403620413 is a wasteful number, since it uses less digits than its factorization.

211403620413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438249 (or 438243 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 211403620413 its reverse (314026304112), we get a palindrome (525429924525).

The spelling of 211403620413 in words is "two hundred eleven billion, four hundred three million, six hundred twenty thousand, four hundred thirteen".