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121023133 = 7111571729
BaseRepresentation
bin1110011011010…
…10101010011101
322102201121112021
413031222222131
5221440220013
620001540141
72666452060
oct715525235
9272647467
10121023133
1162350520
1234644651
131c0c482a
14121048d7
15a958a8d
hex736aa9d

121023133 has 8 divisors (see below), whose sum is σ = 150886080. Its totient is φ = 94303680.

The previous prime is 121023083. The next prime is 121023143. The reversal of 121023133 is 331320121.

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 121023133 - 29 = 121022621 is a prime.

It is a super-2 number, since 2×1210231332 = 29293197442271378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121023143) 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, 785788 + ... + 785941.

It is an arithmetic number, because the mean of its divisors is an integer number (18860760).

Almost surely, 2121023133 is an apocalyptic number.

It is an amenable number.

121023133 is a deficient number, since it is larger than the sum of its proper divisors (29862947).

121023133 is a wasteful number, since it uses less digits than its factorization.

121023133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571747.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 121023133 is about 11001.0514497479. The cubic root of 121023133 is about 494.6402623827.

Adding to 121023133 its reverse (331320121), we get a palindrome (452343254).

The spelling of 121023133 in words is "one hundred twenty-one million, twenty-three thousand, one hundred thirty-three".

Divisors: 1 7 11 77 1571729 11002103 17289019 121023133