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130321223 = 532458891
BaseRepresentation
bin1111100010010…
…00101101000111
3100002020000002222
413301020231013
5231330234343
620533122555
73141466154
oct761105507
9302200088
10130321223
116762129a
123778945b
1320ccba66
141344522b
15b693a68
hex7c48b47

130321223 has 4 divisors (see below), whose sum is σ = 132780168. Its totient is φ = 127862280.

The previous prime is 130321207. The next prime is 130321229. The reversal of 130321223 is 322123031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322123031 = 1372351263.

It is a cyclic number.

It is not a de Polignac number, because 130321223 - 24 = 130321207 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 (130321229) 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, 1229393 + ... + 1229498.

It is an arithmetic number, because the mean of its divisors is an integer number (33195042).

Almost surely, 2130321223 is an apocalyptic number.

130321223 is a deficient number, since it is larger than the sum of its proper divisors (2458945).

130321223 is an equidigital number, since it uses as much as digits as its factorization.

130321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458944.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 130321223 is about 11415.8321203494. The cubic root of 130321223 is about 506.9966024408.

Adding to 130321223 its reverse (322123031), we get a palindrome (452444254).

The spelling of 130321223 in words is "one hundred thirty million, three hundred twenty-one thousand, two hundred twenty-three".

Divisors: 1 53 2458891 130321223