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23001142061 is a prime number
BaseRepresentation
bin10101011010111110…
…011001001100101101
32012100222201002012102
4111122332121030231
5334101243021221
614322214144445
71442663324132
oct253276311455
965328632172
1023001142061
1198335aa517
12455b052125
13222739bc41
141182b08589
158e948830b
hex55af9932d

23001142061 has 2 divisors, whose sum is σ = 23001142062. Its totient is φ = 23001142060.

The previous prime is 23001142057. The next prime is 23001142081. The reversal of 23001142061 is 16024110032.

It is an a-pointer prime, because the next prime (23001142081) can be obtained adding 23001142061 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14513020900 + 8488121161 = 120470^2 + 92131^2 .

It is a cyclic number.

It is not a de Polignac number, because 23001142061 - 22 = 23001142057 is a prime.

It is a super-2 number, since 2×230011420612 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23001142081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11500571030 + 11500571031.

It is an arithmetic number, because the mean of its divisors is an integer number (11500571031).

Almost surely, 223001142061 is an apocalyptic number.

It is an amenable number.

23001142061 is a deficient number, since it is larger than the sum of its proper divisors (1).

23001142061 is an equidigital number, since it uses as much as digits as its factorization.

23001142061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 23001142061 its reverse (16024110032), we get a palindrome (39025252093).

The spelling of 23001142061 in words is "twenty-three billion, one million, one hundred forty-two thousand, sixty-one".