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10130312121 = 3177911812129
BaseRepresentation
bin10010110111101000…
…00100101110111001
3222010222222011202020
421123310010232321
5131221324441441
64353115425053
7506016142446
oct113364045671
928128864666
1010130312121
11432932a486
121b68755189
13c559b5037
146c15a49cd
153e454de66
hex25bd04bb9

10130312121 has 32 divisors (see below), whose sum is σ = 14501721600. Its totient is φ = 6267555840.

The previous prime is 10130312113. The next prime is 10130312131. The reversal of 10130312121 is 12121303101.

It is a happy number.

It is not a de Polignac number, because 10130312121 - 23 = 10130312113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10130312121.

It is not an unprimeable number, because it can be changed into a prime (10130312131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4757185 + ... + 4759313.

It is an arithmetic number, because the mean of its divisors is an integer number (453178800).

Almost surely, 210130312121 is an apocalyptic number.

It is an amenable number.

10130312121 is a deficient number, since it is larger than the sum of its proper divisors (4371409479).

10130312121 is a wasteful number, since it uses less digits than its factorization.

10130312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3409.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10130312121 its reverse (12121303101), we get a palindrome (22251615222).

The spelling of 10130312121 in words is "ten billion, one hundred thirty million, three hundred twelve thousand, one hundred twenty-one".

Divisors: 1 3 17 51 79 237 1181 1343 2129 3543 4029 6387 20077 36193 60231 93299 108579 168191 279897 504573 1586083 2514349 2859247 4758249 7543047 8577741 42743933 128231799 198633571 595900713 3376770707 10130312121