Search a number
-
+
10031231213 is a prime number
BaseRepresentation
bin10010101011110100…
…00111000011101101
3221220002112100021222
421111322013003231
5131020443344323
64335220033125
7503404026023
oct112572070355
927802470258
1010031231213
114288406533
121b3b5327a5
13c3b303993
146b2372713
153da9cb9c8
hex255e870ed

10031231213 has 2 divisors, whose sum is σ = 10031231214. Its totient is φ = 10031231212.

The previous prime is 10031231183. The next prime is 10031231219. The reversal of 10031231213 is 31213213001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9822197449 + 209033764 = 99107^2 + 14458^2 .

It is a cyclic number.

It is not a de Polignac number, because 10031231213 - 26 = 10031231149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10031231191 and 10031231200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10031231219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5015615606 + 5015615607.

It is an arithmetic number, because the mean of its divisors is an integer number (5015615607).

Almost surely, 210031231213 is an apocalyptic number.

It is an amenable number.

10031231213 is a deficient number, since it is larger than the sum of its proper divisors (1).

10031231213 is an equidigital number, since it uses as much as digits as its factorization.

10031231213 is an evil number, because the sum of its binary digits is even.

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

Adding to 10031231213 its reverse (31213213001), we get a palindrome (41244444214).

The spelling of 10031231213 in words is "ten billion, thirty-one million, two hundred thirty-one thousand, two hundred thirteen".