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2012331031111 = 109131142998621
BaseRepresentation
bin11101010010001000010…
…001101011101001000111
321010101011210212010122001
4131102020101223221013
5230432223220443421
64140241353450131
7265246303353052
oct35221021535107
97111153763561
102012331031111
11706474450a95
12286005710947
131179ba17009b
146d57c43ba99
153752a83b691
hex1d48846ba47

2012331031111 has 16 divisors (see below), whose sum is σ = 2047747759200. Its totient is φ = 1977244214400.

The previous prime is 2012331031097. The next prime is 2012331031129. The reversal of 2012331031111 is 1111301332102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2012331031111 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 (2012331031141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20355381 + ... + 20454001.

It is an arithmetic number, because the mean of its divisors is an integer number (127984234950).

Almost surely, 22012331031111 is an apocalyptic number.

2012331031111 is a deficient number, since it is larger than the sum of its proper divisors (35416728089).

2012331031111 is a wasteful number, since it uses less digits than its factorization.

2012331031111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100290.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 2012331031111 its reverse (1111301332102), we get a palindrome (3123632363213).

The spelling of 2012331031111 in words is "two trillion, twelve billion, three hundred thirty-one million, thirty-one thousand, one hundred eleven".

Divisors: 1 109 131 1429 14279 98621 155761 187199 10749689 12919351 20404691 140929409 1408209259 15361305581 18461752579 2012331031111