1002123023311 has 4 divisors (see below), whose sum is σ = 1002129826000. Its totient is φ = 1002116220624.

The previous prime is 1002123023281. The next prime is 1002123023347. The reversal of 1002123023311 is 1133203212001.

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 1002123023311 - 2²⁷ = 1001988805583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002123023411) 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, 3175371 + ... + 3476668.

It is an arithmetic number, because the mean of its divisors is an integer number (250532456500).

Almost surely, 2^{1002123023311} is an apocalyptic number.

1002123023311 is a deficient number, since it is larger than the sum of its proper divisors (6802689).

1002123023311 is an equidigital number, since it uses as much as digits as its factorization.

1002123023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6802688.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1002123023311 its reverse (1133203212001), we get a palindrome (2135326235312).

The spelling of 1002123023311 in words is "one trillion, two billion, one hundred twenty-three million, twenty-three thousand, three hundred eleven".