Search a number
-
+
10020211231 is a prime number
BaseRepresentation
bin10010101010100000…
…00100101000011111
3221212022210110201111
421111100010220133
5131010133224411
64334143522451
7503211250552
oct112520045037
927768713644
1010020211231
11428216a008
121b378b9427
13c38c45a94
146b0b04699
153d9a51721
hex255404a1f

10020211231 has 2 divisors, whose sum is σ = 10020211232. Its totient is φ = 10020211230.

The previous prime is 10020211169. The next prime is 10020211237. The reversal of 10020211231 is 13211202001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10020211231 - 227 = 9885993503 is a prime.

It is a super-2 number, since 2×100202112312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020211237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010105615 + 5010105616.

It is an arithmetic number, because the mean of its divisors is an integer number (5010105616).

Almost surely, 210020211231 is an apocalyptic number.

10020211231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020211231 is an equidigital number, since it uses as much as digits as its factorization.

10020211231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10020211231 its reverse (13211202001), we get a palindrome (23231413232).

The spelling of 10020211231 in words is "ten billion, twenty million, two hundred eleven thousand, two hundred thirty-one".