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30322130123 = 279110864253
BaseRepresentation
bin11100001111010101…
…101111110011001011
32220021012102210211102
4130033111233303023
5444044431130443
621532500252015
72122260565505
oct341725576313
986235383742
1030322130123
111195006317a
125a629a100b
132b23040a3c
14167913cd75
15bc7059cb8
hex70f56fccb

30322130123 has 4 divisors (see below), whose sum is σ = 30332997168. Its totient is φ = 30311263080.

The previous prime is 30322130117. The next prime is 30322130141. The reversal of 30322130123 is 32103122303.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30322130123 - 212 = 30322126027 is a prime.

It is a super-2 number, since 2×303221301232 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30322130095 and 30322130104.

It is not an unprimeable number, because it can be changed into a prime (30322130173) 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, 5429336 + ... + 5434917.

It is an arithmetic number, because the mean of its divisors is an integer number (7583249292).

Almost surely, 230322130123 is an apocalyptic number.

30322130123 is a deficient number, since it is larger than the sum of its proper divisors (10867045).

30322130123 is a wasteful number, since it uses less digits than its factorization.

30322130123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10867044.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30322130123 its reverse (32103122303), we get a palindrome (62425252426).

The spelling of 30322130123 in words is "thirty billion, three hundred twenty-two million, one hundred thirty thousand, one hundred twenty-three".

Divisors: 1 2791 10864253 30322130123