211232433031 has 16 divisors (see below), whose sum is σ = 215763079168. Its totient is φ = 206738373600.

The previous prime is 211232433023. The next prime is 211232433091. The reversal of 211232433031 is 130334232112.

It is a cyclic number.

It is not a de Polignac number, because 211232433031 - 2³ = 211232433023 is a prime.

It is a super-2 number, since 2×211232433031² (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 = 211232432987 and 211232433005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211232433091) 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, 12541786 + ... + 12558616.

It is an arithmetic number, because the mean of its divisors is an integer number (13485192448).

Almost surely, 2^211232433031 is an apocalyptic number.

211232433031 is a deficient number, since it is larger than the sum of its proper divisors (4530646137).

211232433031 is a wasteful number, since it uses less digits than its factorization.

211232433031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17902.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 211232433031 its reverse (130334232112), we get a palindrome (341566665143).

The spelling of 211232433031 in words is "two hundred eleven billion, two hundred thirty-two million, four hundred thirty-three thousand, thirty-one".