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2131023319 is a prime number
BaseRepresentation
bin111111100000100…
…1101010111010111
312111111220012102121
41333001031113113
513331020221234
6551243120411
7103544253655
oct17701152727
95444805377
102131023319
119a39a83a7
124b5813107
1327c660859
14163043dd5
15c71444b4
hex7f04d5d7

2131023319 has 2 divisors, whose sum is σ = 2131023320. Its totient is φ = 2131023318.

The previous prime is 2131023259. The next prime is 2131023397. The reversal of 2131023319 is 9133201312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2131023319 is a prime.

It is a super-2 number, since 2×21310233192 = 9082520772243551522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131023293 and 2131023302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131023019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065511659 + 1065511660.

It is an arithmetic number, because the mean of its divisors is an integer number (1065511660).

Almost surely, 22131023319 is an apocalyptic number.

2131023319 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131023319 is an equidigital number, since it uses as much as digits as its factorization.

2131023319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 2131023319 is about 46163.0081233881. The cubic root of 2131023319 is about 1286.8543670151.

The spelling of 2131023319 in words is "two billion, one hundred thirty-one million, twenty-three thousand, three hundred nineteen".