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121023012 = 22311916841
BaseRepresentation
bin1110011011010…
…10101000100100
322102201121100210
413031222220210
5221440214022
620001535420
72666451525
oct715525044
9272647323
10121023012
1162350420
1234644570
131c0c4766
141210484c
15a958a0c
hex736aa24

121023012 has 24 divisors (see below), whose sum is σ = 308058912. Its totient is φ = 36673600.

The previous prime is 121022981. The next prime is 121023013. The reversal of 121023012 is 210320121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (121023013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458289 + ... + 458552.

It is an arithmetic number, because the mean of its divisors is an integer number (12835788).

Almost surely, 2121023012 is an apocalyptic number.

121023012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121023012 is an abundant number, since it is smaller than the sum of its proper divisors (187035900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121023012 is a wasteful number, since it uses less digits than its factorization.

121023012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916859 (or 916857 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 121023012 is about 11001.0459502722. The cubic root of 121023012 is about 494.6400975341.

Adding to 121023012 its reverse (210320121), we get a palindrome (331343133).

The spelling of 121023012 in words is "one hundred twenty-one million, twenty-three thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 916841 1833682 2750523 3667364 5501046 10085251 11002092 20170502 30255753 40341004 60511506 121023012