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12400231101 = 341842311969
BaseRepresentation
bin10111000110001110…
…01000001010111101
31012000012020000012120
423203013020022331
5200343424343401
65410243553153
7616201140156
oct134307101275
935005200176
1012400231101
115293675185
1224a098b7b9
13122805736b
14858c4292d
154c897c836
hex2e31c82bd

12400231101 has 16 divisors (see below), whose sum is σ = 16940327040. Its totient is φ = 8063559680.

The previous prime is 12400231099. The next prime is 12400231121. The reversal of 12400231101 is 10113200421.

12400231101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12400231101 - 21 = 12400231099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12400231121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1030045 + ... + 1042013.

It is an arithmetic number, because the mean of its divisors is an integer number (1058770440).

Almost surely, 212400231101 is an apocalyptic number.

It is an amenable number.

12400231101 is a deficient number, since it is larger than the sum of its proper divisors (4540095939).

12400231101 is a wasteful number, since it uses less digits than its factorization.

12400231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20436.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12400231101 its reverse (10113200421), we get a palindrome (22513431522).

The spelling of 12400231101 in words is "twelve billion, four hundred million, two hundred thirty-one thousand, one hundred one".

Divisors: 1 3 41 123 8423 11969 25269 35907 345343 490729 1036029 1472187 100814887 302444661 4133410367 12400231101