Search a number
-
+
3130121123 = 197113916693
BaseRepresentation
bin1011101010010001…
…1101101110100011
322002010212121221222
42322210131232203
522402302333443
61234333205255
7140365406363
oct27244355643
98063777858
103130121123
111366965368
1273433082b
133ab64319c
142199d89a3
15134be8468
hexba91dba3

3130121123 has 16 divisors (see below), whose sum is σ = 3365510400. Its totient is φ = 2902404960.

The previous prime is 3130121081. The next prime is 3130121171. The reversal of 3130121123 is 3211210313.

It is a cyclic number.

It is not a de Polignac number, because 3130121123 - 224 = 3113343907 is a prime.

It is a super-2 number, since 2×31301211232 = 19595316489301562258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3130121023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179165 + ... + 195857.

It is an arithmetic number, because the mean of its divisors is an integer number (210344400).

Almost surely, 23130121123 is an apocalyptic number.

3130121123 is a deficient number, since it is larger than the sum of its proper divisors (235389277).

3130121123 is a wasteful number, since it uses less digits than its factorization.

3130121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16922.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3130121123 is about 55947.4854037248. The cubic root of 3130121123 is about 1462.8070601570.

Adding to 3130121123 its reverse (3211210313), we get a palindrome (6341331436).

The spelling of 3130121123 in words is "three billion, one hundred thirty million, one hundred twenty-one thousand, one hundred twenty-three".

Divisors: 1 19 71 139 1349 2641 9869 16693 187511 317167 1185203 2320327 22518857 44086213 164743217 3130121123