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102121020301 = 163626509327
BaseRepresentation
bin101111100011011100…
…0110001101110001101
3100202120222201100010011
41133012320301232031
53133120440122201
6114525211513221
710243440231106
oct1370670615615
9322528640104
10102121020301
113a344721043
1217960158811
13982607a241
144d2aa1d3ad
1529ca555151
hex17c6e31b8d

102121020301 has 4 divisors (see below), whose sum is σ = 102747529792. Its totient is φ = 101494510812.

The previous prime is 102121020277. The next prime is 102121020343. The reversal of 102121020301 is 103020121201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 103020121201 = 731411234537.

It is a cyclic number.

It is not a de Polignac number, because 102121020301 - 211 = 102121018253 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 (102121020361) 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, 313254501 + ... + 313254826.

It is an arithmetic number, because the mean of its divisors is an integer number (25686882448).

Almost surely, 2102121020301 is an apocalyptic number.

It is an amenable number.

102121020301 is a deficient number, since it is larger than the sum of its proper divisors (626509491).

102121020301 is an equidigital number, since it uses as much as digits as its factorization.

102121020301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626509490.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 102121020301 its reverse (103020121201), we get a palindrome (205141141502).

The spelling of 102121020301 in words is "one hundred two billion, one hundred twenty-one million, twenty thousand, three hundred one".

Divisors: 1 163 626509327 102121020301