211423402101 has 8 divisors (see below), whose sum is σ = 296734599520. Its totient is φ = 133530569712.

The previous prime is 211423402097. The next prime is 211423402103. The reversal of 211423402101 is 101204324112.

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

It is not a de Polignac number, because 211423402101 - 2² = 211423402097 is a prime.

It is a super-2 number, since 2×211423402101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211423402103) 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, 1854591190 + ... + 1854591303.

It is an arithmetic number, because the mean of its divisors is an integer number (37091824940).

Almost surely, 2^211423402101 is an apocalyptic number.

It is an amenable number.

211423402101 is a deficient number, since it is larger than the sum of its proper divisors (85311197419).

211423402101 is a wasteful number, since it uses less digits than its factorization.

211423402101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709182515.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 211423402101 its reverse (101204324112), we get a palindrome (312627726213).

It can be divided in two parts, 21142 and 3402101, that added together give a palindrome (3423243).

The spelling of 211423402101 in words is "two hundred eleven billion, four hundred twenty-three million, four hundred two thousand, one hundred one".