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23131121000023 is a prime number
BaseRepresentation
bin1010100001001101000100…
…10000000001111001010111
310000220022110121000201200001
411100212202100001321113
511012440013434000043
6121110142411432131
74605111512262001
oct520464220017127
9100808417021601
1023131121000023
117408942860843
122716b71755647
13cba34200c78a
1459d7a3467371
152a1a60a7174d
hex1509a2401e57

23131121000023 has 2 divisors, whose sum is σ = 23131121000024. Its totient is φ = 23131121000022.

The previous prime is 23131121000011. The next prime is 23131121000077. The reversal of 23131121000023 is 32000012113132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23131121000023 - 25 = 23131120999991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23131121000003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565560500011 + 11565560500012.

It is an arithmetic number, because the mean of its divisors is an integer number (11565560500012).

Almost surely, 223131121000023 is an apocalyptic number.

23131121000023 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131121000023 is an equidigital number, since it uses as much as digits as its factorization.

23131121000023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23131121000023 its reverse (32000012113132), we get a palindrome (55131133113155).

The spelling of 23131121000023 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred twenty-one million, twenty-three", and thus it is an aban number.