1723020234211 has 4 divisors (see below), whose sum is σ = 1746623251192. Its totient is φ = 1699417217232.

The previous prime is 1723020234193. The next prime is 1723020234217. The reversal of 1723020234211 is 1124320203271.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1723020234211 - 2¹³ = 1723020226019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1723020234211.

It is not an unprimeable number, because it can be changed into a prime (1723020234217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11801508381 + ... + 11801508526.

It is an arithmetic number, because the mean of its divisors is an integer number (436655812798).

Almost surely, 2^{1723020234211} is an apocalyptic number.

1723020234211 is a deficient number, since it is larger than the sum of its proper divisors (23603016981).

1723020234211 is an equidigital number, since it uses as much as digits as its factorization.

1723020234211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23603016980.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 1723020234211 its reverse (1124320203271), we get a palindrome (2847340437482).

It can be divided in two parts, 1723020 and 234211, that added together give a triangular number (1957231 = T₁₉₇₈).

The spelling of 1723020234211 in words is "one trillion, seven hundred twenty-three billion, twenty million, two hundred thirty-four thousand, two hundred eleven".