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1020311093 is a prime number
BaseRepresentation
bin111100110100001…
…011011000110101
32122002220011200202
4330310023120311
54042144423333
6245124450245
734166333624
oct7464133065
92562804622
101020311093
11483a3690a
12245849985
131334cc099
14997176bb
155e8945e8
hex3cd0b635

1020311093 has 2 divisors, whose sum is σ = 1020311094. Its totient is φ = 1020311092.

The previous prime is 1020311081. The next prime is 1020311107. The reversal of 1020311093 is 3901130201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1007300644 + 13010449 = 31738^2 + 3607^2 .

It is an emirp because it is prime and its reverse (3901130201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020311093 - 218 = 1020048949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020311023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510155546 + 510155547.

It is an arithmetic number, because the mean of its divisors is an integer number (510155547).

Almost surely, 21020311093 is an apocalyptic number.

It is an amenable number.

1020311093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020311093 is an equidigital number, since it uses as much as digits as its factorization.

1020311093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 1020311093 is about 31942.3088238781. The cubic root of 1020311093 is about 1006.7250368305.

Adding to 1020311093 its reverse (3901130201), we get a palindrome (4921441294).

The spelling of 1020311093 in words is "one billion, twenty million, three hundred eleven thousand, ninety-three".