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120133021 is a prime number
BaseRepresentation
bin1110010100100…
…01010110011101
322101001101112011
413022101112131
5221223224041
615530511221
72656054021
oct712212635
9271041464
10120133021
11618a2798
1234295511
131bb72638
1411d52381
15a82ee81
hex729159d

120133021 has 2 divisors, whose sum is σ = 120133022. Its totient is φ = 120133020.

The previous prime is 120133007. The next prime is 120133037. The reversal of 120133021 is 120331021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79032100 + 41100921 = 8890^2 + 6411^2 .

It is a cyclic number.

It is not a de Polignac number, because 120133021 - 25 = 120132989 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 120132992 and 120133010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120133421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60066510 + 60066511.

It is an arithmetic number, because the mean of its divisors is an integer number (60066511).

Almost surely, 2120133021 is an apocalyptic number.

It is an amenable number.

120133021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120133021 is an equidigital number, since it uses as much as digits as its factorization.

120133021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 120133021 is about 10960.5210186378. The cubic root of 120133021 is about 493.4246020064.

Adding to 120133021 its reverse (120331021), we get a palindrome (240464042).

The spelling of 120133021 in words is "one hundred twenty million, one hundred thirty-three thousand, twenty-one".