1023123132211 has 4 divisors (see below), whose sum is σ = 1023392166552. Its totient is φ = 1022854097872.

The previous prime is 1023123132209. The next prime is 1023123132253. The reversal of 1023123132211 is 1122313213201.

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 1023123132211 - 2¹ = 1023123132209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023123135211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134511466 + ... + 134519071.

It is an arithmetic number, because the mean of its divisors is an integer number (255848041638).

Almost surely, 2^{1023123132211} is an apocalyptic number.

1023123132211 is a deficient number, since it is larger than the sum of its proper divisors (269034341).

1023123132211 is an equidigital number, since it uses as much as digits as its factorization.

1023123132211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269034340.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1023123132211 its reverse (1122313213201), we get a palindrome (2145436345412).

The spelling of 1023123132211 in words is "one trillion, twenty-three billion, one hundred twenty-three million, one hundred thirty-two thousand, two hundred eleven".