Search a number
-
+
2520113131 is a prime number
BaseRepresentation
bin1001011000110101…
…1101111111101011
320111122001000022101
42112031131333223
520130122110011
61054022434231
7116310415414
oct22615357753
96448030271
102520113131
1110835a1328
125a3b92977
13312152203
1419c9a880b
15eb3a02c1
hex9635dfeb

2520113131 has 2 divisors, whose sum is σ = 2520113132. Its totient is φ = 2520113130.

The previous prime is 2520113129. The next prime is 2520113161. The reversal of 2520113131 is 1313110252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2520113131 - 21 = 2520113129 is a prime.

It is a super-2 number, since 2×25201131312 = 12701940386077246322, which contains 22 as substring.

Together with 2520113129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2520113099 and 2520113108.

It is not a weakly prime, because it can be changed into another prime (2520113161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260056565 + 1260056566.

It is an arithmetic number, because the mean of its divisors is an integer number (1260056566).

Almost surely, 22520113131 is an apocalyptic number.

2520113131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520113131 is an equidigital number, since it uses as much as digits as its factorization.

2520113131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2520113131 is about 50200.7283911299. The cubic root of 2520113131 is about 1360.8387867416.

Adding to 2520113131 its reverse (1313110252), we get a palindrome (3833223383).

The spelling of 2520113131 in words is "two billion, five hundred twenty million, one hundred thirteen thousand, one hundred thirty-one".