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121023001 = 1189123619
BaseRepresentation
bin1110011011010…
…10101000011001
322102201121100101
413031222220121
5221440214001
620001535401
72666451511
oct715525031
9272647311
10121023001
1162350410
1234644561
131c0c4758
1412104841
15a958a01
hex736aa19

121023001 has 8 divisors (see below), whose sum is σ = 133509600. Its totient is φ = 108783840.

The previous prime is 121022981. The next prime is 121023013. The reversal of 121023001 is 100320121.

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

It is not a de Polignac number, because 121023001 - 211 = 121020953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121023031) 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, 60831 + ... + 62788.

It is an arithmetic number, because the mean of its divisors is an integer number (16688700).

Almost surely, 2121023001 is an apocalyptic number.

121023001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121023001 is a deficient number, since it is larger than the sum of its proper divisors (12486599).

121023001 is a wasteful number, since it uses less digits than its factorization.

121023001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123719.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 121023001 is about 11001.0454503197. The cubic root of 121023001 is about 494.6400825479.

Adding to 121023001 its reverse (100320121), we get a palindrome (221343122).

The spelling of 121023001 in words is "one hundred twenty-one million, twenty-three thousand, one".

Divisors: 1 11 89 979 123619 1359809 11002091 121023001