211901187053 has 16 divisors (see below), whose sum is σ = 234535311360. Its totient is φ = 190559865600.

The previous prime is 211901187013. The next prime is 211901187061. The reversal of 211901187053 is 350781109112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 211901187053 - 2¹² = 211901182957 is a prime.

It is a super-2 number, since 2×211901187053² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211901186998 and 211901187016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211901187013) 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, 2503238 + ... + 2586503.

It is an arithmetic number, because the mean of its divisors is an integer number (14658456960).

Almost surely, 2^211901187053 is an apocalyptic number.

It is an amenable number.

211901187053 is a deficient number, since it is larger than the sum of its proper divisors (22634124307).

211901187053 is a wasteful number, since it uses less digits than its factorization.

211901187053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5089868.

The product of its (nonzero) digits is 15120, while the sum is 38.

The spelling of 211901187053 in words is "two hundred eleven billion, nine hundred one million, one hundred eighty-seven thousand, fifty-three".