213211020001123 has 8 divisors (see below), whose sum is σ = 213444099258192. Its totient is φ = 212977971111936.

The previous prime is 213211020001117. The next prime is 213211020001127. The reversal of 213211020001123 is 321100020112312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213211020001123 is a prime.

It is a super-2 number, since 2×213211020001123² (a number of 29 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 213211020001123.

It is not an unprimeable number, because it can be changed into a prime (213211020001127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6471811 + ... + 21640387.

It is an arithmetic number, because the mean of its divisors is an integer number (26680512407274).

Almost surely, 2^{213211020001123} is an apocalyptic number.

213211020001123 is a deficient number, since it is larger than the sum of its proper divisors (233079257069).

213211020001123 is a wasteful number, since it uses less digits than its factorization.

213211020001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15183941.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 213211020001123 its reverse (321100020112312), we get a palindrome (534311040113435).

The spelling of 213211020001123 in words is "two hundred thirteen trillion, two hundred eleven billion, twenty million, one thousand, one hundred twenty-three".