201210123043 has 4 divisors (see below), whose sum is σ = 201230179920. Its totient is φ = 201190066168.

The previous prime is 201210123031. The next prime is 201210123089. The reversal of 201210123043 is 340321012102.

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 201210123043 - 2¹⁷ = 201209991971 is a prime.

It is a super-2 number, since 2×201210123043² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201210123043.

It is not an unprimeable number, because it can be changed into a prime (201210123943) 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, 10013383 + ... + 10033456.

It is an arithmetic number, because the mean of its divisors is an integer number (50307544980).

Almost surely, 2^201210123043 is an apocalyptic number.

201210123043 is a deficient number, since it is larger than the sum of its proper divisors (20056877).

201210123043 is a wasteful number, since it uses less digits than its factorization.

201210123043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20056876.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201210123043 its reverse (340321012102), we get a palindrome (541531135145).

The spelling of 201210123043 in words is "two hundred one billion, two hundred ten million, one hundred twenty-three thousand, forty-three".