213233115101 has 2 divisors, whose sum is σ = 213233115102. Its totient is φ = 213233115100.

The previous prime is 213233115097. The next prime is 213233115143. The reversal of 213233115101 is 101511332312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153233102500 + 60000012601 = 391450^2 + 244949^2 .

It is a cyclic number.

It is not a de Polignac number, because 213233115101 - 2² = 213233115097 is a prime.

It is a super-2 number, since 2×213233115101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213233115181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616557550 + 106616557551.

It is an arithmetic number, because the mean of its divisors is an integer number (106616557551).

Almost surely, 2^213233115101 is an apocalyptic number.

It is an amenable number.

213233115101 is a deficient number, since it is larger than the sum of its proper divisors (1).

213233115101 is an equidigital number, since it uses as much as digits as its factorization.

213233115101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 213233115101 its reverse (101511332312), we get a palindrome (314744447413).

The spelling of 213233115101 in words is "two hundred thirteen billion, two hundred thirty-three million, one hundred fifteen thousand, one hundred one".