211311012069 has 12 divisors (see below), whose sum is σ = 312325320736. Its totient is φ = 137597868072.

The previous prime is 211311012001. The next prime is 211311012071. The reversal of 211311012069 is 960210113112.

It is a happy number.

It is not a de Polignac number, because 211311012069 - 2¹⁷ = 211310880997 is a prime.

It is a super-2 number, since 2×211311012069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211311012079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273011257 + ... + 273012030.

Almost surely, 2^211311012069 is an apocalyptic number.

It is an amenable number.

211311012069 is a deficient number, since it is larger than the sum of its proper divisors (101014308667).

211311012069 is a wasteful number, since it uses less digits than its factorization.

211311012069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546023336 (or 546023333 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 211311012069 in words is "two hundred eleven billion, three hundred eleven million, twelve thousand, sixty-nine".