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120123233021 = 1129376561859
BaseRepresentation
bin110111111011111100…
…1110001001011111101
3102111001121001111102102
41233313321301023331
53432003021424041
6131103413434445
711451523430231
oct1576771611375
9374047044372
10120123233021
1146a424849a0
121b34503ba25
13b4348a3a0c
145b578645c1
1531d0be909b
hex1bf7e712fd

120123233021 has 8 divisors (see below), whose sum is σ = 135562269600. Its totient is φ = 105437320240.

The previous prime is 120123233011. The next prime is 120123233023. The reversal of 120123233021 is 120332321021.

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

It is a cyclic number.

It is not a de Polignac number, because 120123233021 - 222 = 120119038717 is a prime.

It is a super-2 number, since 2×1201232330212 (a number of 23 digits) contains 22 as substring.

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 = 120123232984 and 120123233002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120123233023) 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, 188280611 + ... + 188281248.

It is an arithmetic number, because the mean of its divisors is an integer number (16945283700).

Almost surely, 2120123233021 is an apocalyptic number.

120123233021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120123233021 is a deficient number, since it is larger than the sum of its proper divisors (15439036579).

120123233021 is a wasteful number, since it uses less digits than its factorization.

120123233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376561899.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 120123233021 its reverse (120332321021), we get a palindrome (240455554042).

The spelling of 120123233021 in words is "one hundred twenty billion, one hundred twenty-three million, two hundred thirty-three thousand, twenty-one".

Divisors: 1 11 29 319 376561859 4142180449 10920293911 120123233021