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103130132221 = 657191569259
BaseRepresentation
bin110000000001100001…
…0001110111011111101
3100212012022112112102201
41200003002032323331
53142202303212341
6115213300351501
710310442442264
oct1400302167375
9325168475381
10103130132221
113a8122a8836
1217ba20a5591
13995715799c
144dc4a5d5db
152a38e36331
hex180308eefd

103130132221 has 4 divisors (see below), whose sum is σ = 103131767200. Its totient is φ = 103128497244.

The previous prime is 103130132219. The next prime is 103130132233. The reversal of 103130132221 is 122231031301.

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: 122231031301 = 313390514477.

It is a cyclic number.

It is not a de Polignac number, because 103130132221 - 21 = 103130132219 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 (103130132921) 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, 718911 + ... + 850348.

It is an arithmetic number, because the mean of its divisors is an integer number (25782941800).

Almost surely, 2103130132221 is an apocalyptic number.

It is an amenable number.

103130132221 is a deficient number, since it is larger than the sum of its proper divisors (1634979).

103130132221 is an equidigital number, since it uses as much as digits as its factorization.

103130132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634978.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 103130132221 its reverse (122231031301), we get a palindrome (225361163522).

The spelling of 103130132221 in words is "one hundred three billion, one hundred thirty million, one hundred thirty-two thousand, two hundred twenty-one".

Divisors: 1 65719 1569259 103130132221