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1011132021 = 32467136621
BaseRepresentation
bin111100010001001…
…010011001110101
32121110121211101010
4330101022121311
54032322211041
6244200022433
734025323524
oct7421123165
92543554333
101011132021
114798374a9
12242761a19
13131637093
14984084bb
155db7ea16
hex3c44a675

1011132021 has 8 divisors (see below), whose sum is σ = 1348732384. Its totient is φ = 673809840.

The previous prime is 1011132013. The next prime is 1011132043. The reversal of 1011132021 is 1202311101.

1011132021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1011132021 - 23 = 1011132013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1011131988 and 1011132006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011132011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60910 + ... + 75711.

It is an arithmetic number, because the mean of its divisors is an integer number (168591548).

Almost surely, 21011132021 is an apocalyptic number.

It is an amenable number.

1011132021 is a deficient number, since it is larger than the sum of its proper divisors (337600363).

1011132021 is a wasteful number, since it uses less digits than its factorization.

1011132021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139091.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1011132021 is about 31798.3021716569. The cubic root of 1011132021 is about 1003.6969890951.

Adding to 1011132021 its reverse (1202311101), we get a palindrome (2213443122).

The spelling of 1011132021 in words is "one billion, eleven million, one hundred thirty-two thousand, twenty-one".

Divisors: 1 3 2467 7401 136621 409863 337044007 1011132021