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121134412430 = 2557121214433
BaseRepresentation
bin111000011010000101…
…1000111001010001110
3102120200001202201210122
41300310023013022032
53441040402144210
6131352014504542
711515552342163
oct1606413071216
9376601681718
10121134412430
1147411243a59
121b587805152
13b566226525
145c11c8206a
15323e887b55
hex1c342c728e

121134412430 has 16 divisors (see below), whose sum is σ = 218423812464. Its totient is φ = 48368904960.

The previous prime is 121134412411. The next prime is 121134412433. The reversal of 121134412430 is 34214431121.

It is a super-2 number, since 2×1211344124302 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121134412430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121134412433) 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, 10601507 + ... + 10612926.

It is an arithmetic number, because the mean of its divisors is an integer number (13651488279).

Almost surely, 2121134412430 is an apocalyptic number.

121134412430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121134412430 is a deficient number, since it is larger than the sum of its proper divisors (97289400034).

121134412430 is a wasteful number, since it uses less digits than its factorization.

121134412430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21215011.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 121134412430 its reverse (34214431121), we get a palindrome (155348843551).

The spelling of 121134412430 in words is "one hundred twenty-one billion, one hundred thirty-four million, four hundred twelve thousand, four hundred thirty".

Divisors: 1 2 5 10 571 1142 2855 5710 21214433 42428866 106072165 212144330 12113441243 24226882486 60567206215 121134412430