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103110302021 = 472321831527
BaseRepresentation
bin110000000000111011…
…0100101100101000101
3100212010221020001111212
41200001312211211011
53142132214131041
6115211311341205
710310112051266
oct1400166454505
9325127201455
10103110302021
113a802094041
1217b97521805
13995300393c
144dc217a96d
152a3731a8eb
hex1801da5945

103110302021 has 4 divisors (see below), whose sum is σ = 103132138272. Its totient is φ = 103088465772.

The previous prime is 103110302017. The next prime is 103110302027. The reversal of 103110302021 is 120203011301.

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: 120203011301 = 196326474279.

It is a cyclic number.

It is not a de Polignac number, because 103110302021 - 22 = 103110302017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103110301987 and 103110302005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103110302027) 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, 10911041 + ... + 10920486.

It is an arithmetic number, because the mean of its divisors is an integer number (25783034568).

Almost surely, 2103110302021 is an apocalyptic number.

It is an amenable number.

103110302021 is a deficient number, since it is larger than the sum of its proper divisors (21836251).

103110302021 is an equidigital number, since it uses as much as digits as its factorization.

103110302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21836250.

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

Adding to 103110302021 its reverse (120203011301), we get a palindrome (223313313322).

The spelling of 103110302021 in words is "one hundred three billion, one hundred ten million, three hundred two thousand, twenty-one".

Divisors: 1 4723 21831527 103110302021