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400230022091 is a prime number
BaseRepresentation
bin1011101001011111001…
…00010111101111001011
31102021001201101200222112
411310233210113233023
523024132341201331
6503510234212535
740626034025234
oct5645744275713
91367051350875
10400230022091
111448114603a9
126569828414b
132b9841a76a3
141552a95c08b
15a626bd332b
hex5d2f917bcb

400230022091 has 2 divisors, whose sum is σ = 400230022092. Its totient is φ = 400230022090.

The previous prime is 400230022079. The next prime is 400230022099. The reversal of 400230022091 is 190220032004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-400230022091 is a prime.

It is not a weakly prime, because it can be changed into another prime (400230022099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200115011045 + 200115011046.

It is an arithmetic number, because the mean of its divisors is an integer number (200115011046).

Almost surely, 2400230022091 is an apocalyptic number.

400230022091 is a deficient number, since it is larger than the sum of its proper divisors (1).

400230022091 is an equidigital number, since it uses as much as digits as its factorization.

400230022091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 400230022091 its reverse (190220032004), we get a palindrome (590450054095).

The spelling of 400230022091 in words is "four hundred billion, two hundred thirty million, twenty-two thousand, ninety-one".