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2131013 is a prime number
BaseRepresentation
bin1000001000010001000101
311000021012102
420020101011
51021143023
6113401445
724053603
oct10102105
94007172
102131013
111226075
12869285
13597c71
143d6873
152c1628
hex208445

2131013 has 2 divisors, whose sum is σ = 2131014. Its totient is φ = 2131012.

The previous prime is 2130979. The next prime is 2131039. The reversal of 2131013 is 3101312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1723969 + 407044 = 1313^2 + 638^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131013 - 28 = 2130757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2130985 and 2131003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065506 + 1065507.

It is an arithmetic number, because the mean of its divisors is an integer number (1065507).

22131013 is an apocalyptic number.

It is an amenable number.

2131013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131013 is an equidigital number, since it uses as much as digits as its factorization.

2131013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 2131013 is about 1459.7989587611. The cubic root of 2131013 is about 128.6852289911.

Adding to 2131013 its reverse (3101312), we get a palindrome (5232325).

Subtracting 2131013 from its reverse (3101312), we obtain a cube (970299 = 993).

The spelling of 2131013 in words is "two million, one hundred thirty-one thousand, thirteen".