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10220123231 is a prime number
BaseRepresentation
bin10011000010010101…
…01011010001011111
3222101020222001102122
421201022223101133
5131412322420411
64410044413155
7511156420433
oct114112532137
928336861378
1010220123231
114374aa193a
121b928471bb
13c6b49bcc6
146cd4a29c3
153ec38e9db
hex2612ab45f

10220123231 has 2 divisors, whose sum is σ = 10220123232. Its totient is φ = 10220123230.

The previous prime is 10220123171. The next prime is 10220123269. The reversal of 10220123231 is 13232102201.

10220123231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10220123231 - 230 = 9146381407 is a prime.

It is a super-2 number, since 2×102201232312 (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 (10220113231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110061615 + 5110061616.

It is an arithmetic number, because the mean of its divisors is an integer number (5110061616).

Almost surely, 210220123231 is an apocalyptic number.

10220123231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10220123231 is an equidigital number, since it uses as much as digits as its factorization.

10220123231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10220123231 its reverse (13232102201), we get a palindrome (23452225432).

The spelling of 10220123231 in words is "ten billion, two hundred twenty million, one hundred twenty-three thousand, two hundred thirty-one".