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121031023133 = 177397527013
BaseRepresentation
bin111000010111000000…
…0101101101000011101
3102120101212020000100102
41300232000231220131
53440332420220013
6131333442510445
711513155502516
oct1605600555035
9376355200312
10121031023133
1147368948059
121b559065425
13b54a997127
145c0224ba0d
153235763d58
hex1c2e02da1d

121031023133 has 8 divisors (see below), whose sum is σ = 129905982648. Its totient is φ = 112351117824.

The previous prime is 121031023123. The next prime is 121031023189. The reversal of 121031023133 is 331320130121.

It can be written as a sum of positive squares in 4 ways, for example, as 57344444089 + 63686579044 = 239467^2 + 252362^2 .

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 121031023133 - 24 = 121031023117 is a prime.

It is a super-2 number, since 2×1210310231332 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121031023103) 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, 48762266 + ... + 48764747.

It is an arithmetic number, because the mean of its divisors is an integer number (16238247831).

Almost surely, 2121031023133 is an apocalyptic number.

It is an amenable number.

121031023133 is a deficient number, since it is larger than the sum of its proper divisors (8874959515).

121031023133 is an equidigital number, since it uses as much as digits as its factorization.

121031023133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97527103.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 121031023133 its reverse (331320130121), we get a palindrome (452351153254).

The spelling of 121031023133 in words is "one hundred twenty-one billion, thirty-one million, twenty-three thousand, one hundred thirty-three".

Divisors: 1 17 73 1241 97527013 1657959221 7119471949 121031023133