2002123112311 has 16 divisors (see below), whose sum is σ = 2422803225600. Its totient is φ = 1615114131840.

The previous prime is 2002123112263. The next prime is 2002123112317. The reversal of 2002123112311 is 1132113212002.

It is a cyclic number.

It is not a de Polignac number, because 2002123112311 - 2²¹ = 2002121015159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002123112317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4578390 + ... + 4996588.

It is an arithmetic number, because the mean of its divisors is an integer number (151425201600).

Almost surely, 2^{2002123112311} is an apocalyptic number.

2002123112311 is a deficient number, since it is larger than the sum of its proper divisors (420680113289).

2002123112311 is a wasteful number, since it uses less digits than its factorization.

2002123112311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458454.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2002123112311 its reverse (1132113212002), we get a palindrome (3134236324313).

The spelling of 2002123112311 in words is "two trillion, two billion, one hundred twenty-three million, one hundred twelve thousand, three hundred eleven".