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42010101112021 = 7149166324220169
BaseRepresentation
bin10011000110101001111010…
…01001110101110011010101
312111202010102011210112000121
421203110331021311303111
521001243141341041041
6225203101331111541
711564062316430010
oct1143247511656325
9174663364715017
1042010101112021
1112427424970919
124865a09a425b1
131a596c675bca3
14a5342a6cc377
154ccba48cb7d1
hex26353d275cd5

42010101112021 has 16 divisors (see below), whose sum is σ = 48362835456000. Its totient is φ = 35745480263808.

The previous prime is 42010101111989. The next prime is 42010101112043. The reversal of 42010101112021 is 12021110101024.

It is not a de Polignac number, because 42010101112021 - 25 = 42010101111989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42010101111986 and 42010101112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42010101112921) 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, 10375576 + ... + 13844593.

It is an arithmetic number, because the mean of its divisors is an integer number (3022677216000).

Almost surely, 242010101112021 is an apocalyptic number.

It is an amenable number.

42010101112021 is a deficient number, since it is larger than the sum of its proper divisors (6352734343979).

42010101112021 is a wasteful number, since it uses less digits than its factorization.

42010101112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24221988.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 42010101112021 its reverse (12021110101024), we get a palindrome (54031211213045).

The spelling of 42010101112021 in words is "forty-two trillion, ten billion, one hundred one million, one hundred twelve thousand, twenty-one".

Divisors: 1 7 149 1043 1663 11641 247787 1734509 24220169 169541183 3608805181 25261636267 40278141047 281946987329 6001443016003 42010101112021