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1001423311311 = 31997181121959
BaseRepresentation
bin11101001001010010111…
…10110001000111001111
310112201211220122010112210
432210221132301013033
5112401403331430221
62044014133001503
7132231126461463
oct16445136610717
93481756563483
101001423311311
11356779396835
121420ba783293
1373584119997
143667d4a64a3
151b0b16b3276
hexe9297b11cf

1001423311311 has 16 divisors (see below), whose sum is σ = 1419996166400. Its totient is φ = 625957486848.

The previous prime is 1001423311297. The next prime is 1001423311373. The reversal of 1001423311311 is 1131133241001.

It is not a de Polignac number, because 1001423311311 - 210 = 1001423310287 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 (1001423311111) 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, 90555451 + ... + 90566508.

It is an arithmetic number, because the mean of its divisors is an integer number (88749760400).

Almost surely, 21001423311311 is an apocalyptic number.

1001423311311 is a deficient number, since it is larger than the sum of its proper divisors (418572855089).

1001423311311 is a wasteful number, since it uses less digits than its factorization.

1001423311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181122078.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1001423311311 its reverse (1131133241001), we get a palindrome (2132556552312).

The spelling of 1001423311311 in words is "one trillion, one billion, four hundred twenty-three million, three hundred eleven thousand, three hundred eleven".

Divisors: 1 3 19 57 97 291 1843 5529 181121959 543365877 3441317221 10323951663 17568830023 52706490069 333807770437 1001423311311