210211022020123 has 2 divisors, whose sum is σ = 210211022020124. Its totient is φ = 210211022020122.

The previous prime is 210211022020003. The next prime is 210211022020147. The reversal of 210211022020123 is 321020220112012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210211022020123 - 2¹³ = 210211022011931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210211022020123.

It is not a weakly prime, because it can be changed into another prime (210211022020163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105105511010061 + 105105511010062.

It is an arithmetic number, because the mean of its divisors is an integer number (105105511010062).

Almost surely, 2^{210211022020123} is an apocalyptic number.

210211022020123 is a deficient number, since it is larger than the sum of its proper divisors (1).

210211022020123 is an equidigital number, since it uses as much as digits as its factorization.

210211022020123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 210211022020123 its reverse (321020220112012), we get a palindrome (531231242132135).

The spelling of 210211022020123 in words is "two hundred ten trillion, two hundred eleven billion, twenty-two million, twenty thousand, one hundred twenty-three".