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23203110031 is a prime number
BaseRepresentation
bin10101100111000000…
…110101110010001111
32012220001202010011121
4111213000311302033
5340004444010111
614354231101411
71450665116053
oct254700656217
965801663147
1023203110031
119927606aa2
1245b6811867
13225a194c0a
1411a187dc63
1590c080871
hex567035c8f

23203110031 has 2 divisors, whose sum is σ = 23203110032. Its totient is φ = 23203110030.

The previous prime is 23203110013. The next prime is 23203110053. The reversal of 23203110031 is 13001130232.

Together with previous prime (23203110013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23203110031 - 25 = 23203109999 is a prime.

It is a super-2 number, since 2×232031100312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23203109987 and 23203110014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23203110001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601555015 + 11601555016.

It is an arithmetic number, because the mean of its divisors is an integer number (11601555016).

Almost surely, 223203110031 is an apocalyptic number.

23203110031 is a deficient number, since it is larger than the sum of its proper divisors (1).

23203110031 is an equidigital number, since it uses as much as digits as its factorization.

23203110031 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 16.

Adding to 23203110031 its reverse (13001130232), we get a palindrome (36204240263).

The spelling of 23203110031 in words is "twenty-three billion, two hundred three million, one hundred ten thousand, thirty-one".