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120232031 is a prime number
BaseRepresentation
bin1110010101010…
…01100001011111
322101020102100012
413022221201133
5221234411111
615532553435
72656645463
oct712514137
9271212305
10120232031
1161960117
123432287b
131bba871a
1411d7a4a3
15a84e48b
hex72a985f

120232031 has 2 divisors, whose sum is σ = 120232032. Its totient is φ = 120232030.

The previous prime is 120232001. The next prime is 120232051. The reversal of 120232031 is 130232021.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (130232021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120232031 - 218 = 119969887 is a prime.

It is a super-2 number, since 2×1202320312 = 28911482556769922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 120231997 and 120232015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120232001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60116015 + 60116016.

It is an arithmetic number, because the mean of its divisors is an integer number (60116016).

Almost surely, 2120232031 is an apocalyptic number.

120232031 is a deficient number, since it is larger than the sum of its proper divisors (1).

120232031 is an equidigital number, since it uses as much as digits as its factorization.

120232031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 120232031 is about 10965.0367532444. The cubic root of 120232031 is about 493.5601199910.

Adding to 120232031 its reverse (130232021), we get a palindrome (250464052).

It can be divided in two parts, 1202 and 32031, that added together give a palindrome (33233).

The spelling of 120232031 in words is "one hundred twenty million, two hundred thirty-two thousand, thirty-one".