211344445145123 has 2 divisors, whose sum is σ = 211344445145124. Its totient is φ = 211344445145122.

The previous prime is 211344445145107. The next prime is 211344445145149. The reversal of 211344445145123 is 321541544443112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211344445145123 - 2⁴ = 211344445145107 is a prime.

It is not a weakly prime, because it can be changed into another prime (211344445145023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105672222572561 + 105672222572562.

It is an arithmetic number, because the mean of its divisors is an integer number (105672222572562).

Almost surely, 2^{211344445145123} is an apocalyptic number.

211344445145123 is a deficient number, since it is larger than the sum of its proper divisors (1).

211344445145123 is an equidigital number, since it uses as much as digits as its factorization.

211344445145123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 921600, while the sum is 44.

Adding to 211344445145123 its reverse (321541544443112), we get a palindrome (532885989588235).

The spelling of 211344445145123 in words is "two hundred eleven trillion, three hundred forty-four billion, four hundred forty-five million, one hundred forty-five thousand, one hundred twenty-three".