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121020103012133 = 1317618977086493
BaseRepresentation
bin11011100001000100110000…
…010000000010111100100101
3120212111102001001120021202102
4123201010300100002330211
5111330243132332342013
61105215511240421445
734330261653546053
oct3341046020027445
9525442031507672
10121020103012133
1135619379187716
12116a660b777885
13526b1ba529960
1421c55933351d3
15ded025bd4d58
hex6e1130402f25

121020103012133 has 16 divisors (see below), whose sum is σ = 140257999382256. Its totient is φ = 103416036387840.

The previous prime is 121020103012121. The next prime is 121020103012163. The reversal of 121020103012133 is 331210301020121.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3499716787009 + 117520386225124 = 1870753^2 + 10840682^2 .

It is a cyclic number.

It is not a de Polignac number, because 121020103012133 - 216 = 121020102946597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020103012163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4488529766 + ... + 4488556727.

It is an arithmetic number, because the mean of its divisors is an integer number (8766124961391).

Almost surely, 2121020103012133 is an apocalyptic number.

121020103012133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121020103012133 is a deficient number, since it is larger than the sum of its proper divisors (19237896370123).

121020103012133 is a wasteful number, since it uses less digits than its factorization.

121020103012133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8977086584.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121020103012133 its reverse (331210301020121), we get a palindrome (452230404032254).

The spelling of 121020103012133 in words is "one hundred twenty-one trillion, twenty billion, one hundred three million, twelve thousand, one hundred thirty-three".

Divisors: 1 13 17 61 221 793 1037 13481 8977086493 116702124409 152610470381 547602276073 1983936114953 7118829588949 9309238693241 121020103012133