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10302123101 = 82912427169
BaseRepresentation
bin10011001100000110…
…11110110001011101
3222120222021002002212
421212003132301131
5132044320414401
64422134130205
7513203413214
oct114603366135
928528232085
1010302123101
114407309626
121bb61b0965
13c8247c73a
146da32a07b
1540468adbb
hex2660dec5d

10302123101 has 4 divisors (see below), whose sum is σ = 10314551100. Its totient is φ = 10289695104.

The previous prime is 10302123089. The next prime is 10302123121. The reversal of 10302123101 is 10132120301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10132120301 = 15436566507.

It can be written as a sum of positive squares in 2 ways, for example, as 8422467076 + 1879656025 = 91774^2 + 43355^2 .

It is a cyclic number.

It is not a de Polignac number, because 10302123101 - 230 = 9228381277 is a prime.

It is a super-2 number, since 2×103021231012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10302123121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6212756 + ... + 6214413.

It is an arithmetic number, because the mean of its divisors is an integer number (2578637775).

Almost surely, 210302123101 is an apocalyptic number.

It is an amenable number.

10302123101 is a deficient number, since it is larger than the sum of its proper divisors (12427999).

10302123101 is an equidigital number, since it uses as much as digits as its factorization.

10302123101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12427998.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10302123101 its reverse (10132120301), we get a palindrome (20434243402).

The spelling of 10302123101 in words is "ten billion, three hundred two million, one hundred twenty-three thousand, one hundred one".

Divisors: 1 829 12427169 10302123101