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11020232031 = 317216082981
BaseRepresentation
bin10100100001101101…
…10110010101011111
31001110000111210100220
422100312312111133
5140032134411111
65021305452423
7540043266234
oct122066662537
931400453326
1011020232031
1147456a7486
1221767a1113
13106818c573
1476785978b
15447738e06
hex290db655f

11020232031 has 8 divisors (see below), whose sum is σ = 15557974704. Its totient is φ = 6914655360.

The previous prime is 11020232023. The next prime is 11020232039. The reversal of 11020232031 is 13023202011.

It is an interprime number because it is at equal distance from previous prime (11020232023) and next prime (11020232039).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11020232031 - 23 = 11020232023 is a prime.

It is a super-2 number, since 2×110202320312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11020232031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020232039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108041440 + ... + 108041541.

It is an arithmetic number, because the mean of its divisors is an integer number (1944746838).

Almost surely, 211020232031 is an apocalyptic number.

11020232031 is a deficient number, since it is larger than the sum of its proper divisors (4537742673).

11020232031 is a wasteful number, since it uses less digits than its factorization.

11020232031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216083001.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11020232031 its reverse (13023202011), we get a palindrome (24043434042).

The spelling of 11020232031 in words is "eleven billion, twenty million, two hundred thirty-two thousand, thirty-one".

Divisors: 1 3 17 51 216082981 648248943 3673410677 11020232031