211130123201 has 4 divisors (see below), whose sum is σ = 211133065152. Its totient is φ = 211127181252.

The previous prime is 211130123161. The next prime is 211130123213. The reversal of 211130123201 is 102321031112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211130123201 is a prime.

It is a super-3 number, since 3×211130123201³ (a number of 35 digits) contains 333 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 211130123201.

It is not an unprimeable number, because it can be changed into a prime (211130123251) 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, 1360565 + ... + 1507778.

It is an arithmetic number, because the mean of its divisors is an integer number (52783266288).

Almost surely, 2^211130123201 is an apocalyptic number.

It is an amenable number.

211130123201 is a deficient number, since it is larger than the sum of its proper divisors (2941951).

211130123201 is an equidigital number, since it uses as much as digits as its factorization.

211130123201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941950.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211130123201 its reverse (102321031112), we get a palindrome (313451154313).

The spelling of 211130123201 in words is "two hundred eleven billion, one hundred thirty million, one hundred twenty-three thousand, two hundred one".