211885651043 has 24 divisors (see below), whose sum is σ = 236868724848. Its totient is φ = 189344232000.

The previous prime is 211885651037. The next prime is 211885651057. The reversal of 211885651043 is 340156588112.

It is not a de Polignac number, because 211885651043 - 2²² = 211881456739 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211885650985 and 211885651003.

It is not an unprimeable number, because it can be changed into a prime (211885651013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12709133 + ... + 12725793.

It is an arithmetic number, because the mean of its divisors is an integer number (9869530202).

Almost surely, 2^211885651043 is an apocalyptic number.

211885651043 is a deficient number, since it is larger than the sum of its proper divisors (24983073805).

211885651043 is a wasteful number, since it uses less digits than its factorization.

211885651043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18467 (or 18456 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 211885651043 in words is "two hundred eleven billion, eight hundred eighty-five million, six hundred fifty-one thousand, forty-three".