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10302121131 = 37396748647
BaseRepresentation
bin10011001100000110…
…11110010010101011
3222120222020222101220
421212003132102223
5132044320334011
64422134113123
7513203404401
oct114603362253
928528228356
1010302121131
1144073080a5
121bb61ab7a3
13c8247b883
146da329471
1540468a506
hex2660de4ab

10302121131 has 16 divisors (see below), whose sum is σ = 13939014144. Its totient is φ = 6766853184.

The previous prime is 10302121129. The next prime is 10302121133. The reversal of 10302121131 is 13112120301.

It is a happy number.

10302121131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10302121129) and next prime (10302121133).

It is not a de Polignac number, because 10302121131 - 21 = 10302121129 is a prime.

It is a super-2 number, since 2×103021211312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10302121131.

It is not an unprimeable number, because it can be changed into a prime (10302121133) 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, 187450 + ... + 236096.

It is an arithmetic number, because the mean of its divisors is an integer number (871188384).

Almost surely, 210302121131 is an apocalyptic number.

10302121131 is a deficient number, since it is larger than the sum of its proper divisors (3636893013).

10302121131 is an equidigital number, since it uses as much as digits as its factorization.

10302121131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49690.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10302121131 its reverse (13112120301), we get a palindrome (23414241432).

The spelling of 10302121131 in words is "ten billion, three hundred two million, one hundred twenty-one thousand, one hundred thirty-one".

Divisors: 1 3 73 219 967 2901 48647 70591 145941 211773 3551231 10653693 47041649 141124947 3434040377 10302121131