211431432034 has 12 divisors (see below), whose sum is σ = 331535678166. Its totient is φ = 101119380032.

The previous prime is 211431432013. The next prime is 211431432041. The reversal of 211431432034 is 430234134112.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 193085542225 + 18345889809 = 439415^2 + 135447^2 .

It is a super-2 number, since 2×211431432034² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211431431993 and 211431432011.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 99919279 + ... + 99921394.

Almost surely, 2^211431432034 is an apocalyptic number.

211431432034 is a deficient number, since it is larger than the sum of its proper divisors (120104246132).

211431432034 is a wasteful number, since it uses less digits than its factorization.

211431432034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199840721 (or 199840698 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 211431432034 its reverse (430234134112), we get a palindrome (641665566146).

The spelling of 211431432034 in words is "two hundred eleven billion, four hundred thirty-one million, four hundred thirty-two thousand, thirty-four".