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10111011001101 = 321381813501569
BaseRepresentation
bin1001001100100010011100…
…1110000001001100001101
31022210121021202000101222200
42103020213032001030031
52311124322304013401
633300533452032113
72062332164314653
oct223104716011415
938717252011880
1010111011001101
11324906813122a
1211736b9162639
13584605c44a1a
1426d5386c4dd3
15128025b91686
hex9322738130d

10111011001101 has 12 divisors (see below), whose sum is σ = 14615369206620. Its totient is φ = 6735792983040.

The previous prime is 10111011001099. The next prime is 10111011001159. The reversal of 10111011001101 is 10110011011101.

It can be written as a sum of positive squares in 2 ways, for example, as 4120392515625 + 5990618485476 = 2029875^2 + 2447574^2 .

It is not a de Polignac number, because 10111011001101 - 21 = 10111011001099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111011001181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406738356 + ... + 406763213.

It is an arithmetic number, because the mean of its divisors is an integer number (1217947433885).

Almost surely, 210111011001101 is an apocalyptic number.

It is an amenable number.

10111011001101 is a deficient number, since it is larger than the sum of its proper divisors (4504358205519).

10111011001101 is a wasteful number, since it uses less digits than its factorization.

10111011001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813502956 (or 813502953 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 10111011001101 its reverse (10110011011101), we get a palindrome (20221022012202).

The spelling of 10111011001101 in words is "ten trillion, one hundred eleven billion, eleven million, one thousand, one hundred one".

Divisors: 1 3 9 1381 4143 12429 813501569 2440504707 7321514121 1123445666789 3370337000367 10111011001101