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10103231111 = 314164112401
BaseRepresentation
bin10010110100011001…
…10001001010000111
3222002010000022120212
421122030301022013
5131142411343421
64350311150035
7505240022201
oct113214611207
928063008525
1010103231111
114315013086
121b5b67531b
13c501c287c
146bbb55771
153e1e9ee5b
hex25a331287

10103231111 has 16 divisors (see below), whose sum is σ = 10701040896. Its totient is φ = 9523200000.

The previous prime is 10103231069. The next prime is 10103231153. The reversal of 10103231111 is 11113230101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10103231069) and next prime (10103231153).

It is not a de Polignac number, because 10103231111 - 210 = 10103230087 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 (10103231011) 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, 808511 + ... + 820911.

It is an arithmetic number, because the mean of its divisors is an integer number (668815056).

Almost surely, 210103231111 is an apocalyptic number.

10103231111 is a deficient number, since it is larger than the sum of its proper divisors (597809785).

10103231111 is a wasteful number, since it uses less digits than its factorization.

10103231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13114.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 10103231111 its reverse (11113230101), we get a palindrome (21216461212).

The spelling of 10103231111 in words is "ten billion, one hundred three million, two hundred thirty-one thousand, one hundred eleven".

Divisors: 1 31 41 641 1271 12401 19871 26281 384431 508441 814711 7949041 15761671 246420271 325910681 10103231111