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121030131 = 373552649
BaseRepresentation
bin1110011011011…
…00010111110011
322102201222010110
413031230113303
5221440431011
620002032403
72666511345
oct715542763
9272658113
10121030131
1162355802
1234648703
131c0c7a81
1412107295
15a95aba6
hex736c5f3

121030131 has 8 divisors (see below), whose sum is σ = 163584400. Its totient is φ = 79581312.

The previous prime is 121030099. The next prime is 121030141. The reversal of 121030131 is 131030121.

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

It is not a de Polignac number, because 121030131 - 25 = 121030099 is a prime.

It is a super-2 number, since 2×1210301312 = 29296585219754322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121030141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276106 + ... + 276543.

It is an arithmetic number, because the mean of its divisors is an integer number (20448050).

Almost surely, 2121030131 is an apocalyptic number.

121030131 is a deficient number, since it is larger than the sum of its proper divisors (42554269).

121030131 is an equidigital number, since it uses as much as digits as its factorization.

121030131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552725.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 121030131 is about 11001.3695056570. The cubic root of 121030131 is about 494.6497961684.

Adding to 121030131 its reverse (131030121), we get a palindrome (252060252).

The spelling of 121030131 in words is "one hundred twenty-one million, thirty thousand, one hundred thirty-one".

Divisors: 1 3 73 219 552649 1657947 40343377 121030131