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43021020103 is a prime number
BaseRepresentation
bin101000000100010000…
…001010101111000111
311010001012122020222221
4220010100022233013
51201101340120403
631432533433211
73052046431405
oct500420125707
9133035566887
1043021020103
1117277276176
12840779b807
134097c16619
1421218c6475
1511bbd2ddbd
hexa0440abc7

43021020103 has 2 divisors, whose sum is σ = 43021020104. Its totient is φ = 43021020102.

The previous prime is 43021020083. The next prime is 43021020127. The reversal of 43021020103 is 30102012034.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-43021020103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43021020803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21510510051 + 21510510052.

It is an arithmetic number, because the mean of its divisors is an integer number (21510510052).

Almost surely, 243021020103 is an apocalyptic number.

43021020103 is a deficient number, since it is larger than the sum of its proper divisors (1).

43021020103 is an equidigital number, since it uses as much as digits as its factorization.

43021020103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 43021020103 its reverse (30102012034), we get a palindrome (73123032137).

The spelling of 43021020103 in words is "forty-three billion, twenty-one million, twenty thousand, one hundred three".