211423051043 has 4 divisors (see below), whose sum is σ = 213475702128. Its totient is φ = 209370399960.

The previous prime is 211423051031. The next prime is 211423051121. The reversal of 211423051043 is 340150324112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211423051043 - 2⁴ = 211423051027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211423054043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026325388 + ... + 1026325593.

It is an arithmetic number, because the mean of its divisors is an integer number (53368925532).

Almost surely, 2^211423051043 is an apocalyptic number.

211423051043 is a deficient number, since it is larger than the sum of its proper divisors (2052651085).

211423051043 is a wasteful number, since it uses less digits than its factorization.

211423051043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052651084.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 211423051043 its reverse (340150324112), we get a palindrome (551573375155).

The spelling of 211423051043 in words is "two hundred eleven billion, four hundred twenty-three million, fifty-one thousand, forty-three".