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121132112300 = 22521211321123
BaseRepresentation
bin111000011010000001…
…0010101100110101100
3102120122220102212121122
41300310002111212230
53441034310043200
6131351453320112
711515523652233
oct1606402254654
9376586385548
10121132112300
114740aa12921
121b586a96038
13b5658cc5c4
145c11843b1a
15323e581385
hex1c340959ac

121132112300 has 18 divisors (see below), whose sum is σ = 262856683908. Its totient is φ = 48452844880.

The previous prime is 121132112267. The next prime is 121132112323. The reversal of 121132112300 is 3211231121.

It is a super-2 number, since 2×1211321123002 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 605660462 + ... + 605660661.

It is an arithmetic number, because the mean of its divisors is an integer number (14603149106).

Almost surely, 2121132112300 is an apocalyptic number.

121132112300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121132112300 is an abundant number, since it is smaller than the sum of its proper divisors (141724571608).

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

121132112300 is a wasteful number, since it uses less digits than its factorization.

121132112300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211321137 (or 1211321130 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121132112300 its reverse (3211231121), we get a palindrome (124343343421).

The spelling of 121132112300 in words is "one hundred twenty-one billion, one hundred thirty-two million, one hundred twelve thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1211321123 2422642246 4845284492 6056605615 12113211230 24226422460 30283028075 60566056150 121132112300