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131021241301 is a prime number
BaseRepresentation
bin111101000000101111…
…0010111101111010101
3110112012002120200022201
41322001132113233111
54121312414210201
6140105035524501
712315554114146
oct1720136275725
9415162520281
10131021241301
1150625090905
12214868b9731
13c48063b122
1464acd85acd
15361c83d801
hex1e81797bd5

131021241301 has 2 divisors, whose sum is σ = 131021241302. Its totient is φ = 131021241300.

The previous prime is 131021241289. The next prime is 131021241319. The reversal of 131021241301 is 103142120131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130043178225 + 978063076 = 360615^2 + 31274^2 .

It is a cyclic number.

It is not a de Polignac number, because 131021241301 - 27 = 131021241173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131021241341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65510620650 + 65510620651.

It is an arithmetic number, because the mean of its divisors is an integer number (65510620651).

Almost surely, 2131021241301 is an apocalyptic number.

It is an amenable number.

131021241301 is a deficient number, since it is larger than the sum of its proper divisors (1).

131021241301 is an equidigital number, since it uses as much as digits as its factorization.

131021241301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131021241301 its reverse (103142120131), we get a palindrome (234163361432).

The spelling of 131021241301 in words is "one hundred thirty-one billion, twenty-one million, two hundred forty-one thousand, three hundred one".