213122031201011 has 2 divisors, whose sum is σ = 213122031201012. Its totient is φ = 213122031201010.

The previous prime is 213122031200987. The next prime is 213122031201061. The reversal of 213122031201011 is 110102130221312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213122031201011 - 2¹⁸ = 213122030938867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (213122031201061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106561015600505 + 106561015600506.

It is an arithmetic number, because the mean of its divisors is an integer number (106561015600506).

Almost surely, 2^{213122031201011} is an apocalyptic number.

213122031201011 is a deficient number, since it is larger than the sum of its proper divisors (1).

213122031201011 is an equidigital number, since it uses as much as digits as its factorization.

213122031201011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 213122031201011 its reverse (110102130221312), we get a palindrome (323224161422323).

The spelling of 213122031201011 in words is "two hundred thirteen trillion, one hundred twenty-two billion, thirty-one million, two hundred one thousand, eleven".