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2121403 is a prime number
BaseRepresentation
bin1000000101111010111011
310222210000111
420011322323
51020341103
6113245151
724013564
oct10057273
93883014
102121403
111219929
128637b7
1359378b
143d316b
152bd86d
hex205ebb

2121403 has 2 divisors, whose sum is σ = 2121404. Its totient is φ = 2121402.

The previous prime is 2121389. The next prime is 2121433. The reversal of 2121403 is 3041212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121403 - 29 = 2120891 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060701 + 1060702.

It is an arithmetic number, because the mean of its divisors is an integer number (1060702).

22121403 is an apocalyptic number.

2121403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121403 is an equidigital number, since it uses as much as digits as its factorization.

2121403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2121403 is about 1456.5036903489. The cubic root of 2121403 is about 128.4914981733.

Adding to 2121403 its reverse (3041212), we get a palindrome (5162615).

The spelling of 2121403 in words is "two million, one hundred twenty-one thousand, four hundred three".