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121234540332 = 22312451811411
BaseRepresentation
bin111000011101000100…
…1000100011100101100
3102120221001011202110110
41300322021010130230
53441242020242312
6131405552540020
711521206406233
oct1607211043454
9376831152413
10121234540332
1147462812594
121b5b5251610
13b580bb32c9
145c212a7b1a
15324856543c
hex1c3a24472c

121234540332 has 24 divisors (see below), whose sum is σ = 282903662272. Its totient is φ = 40408218000.

The previous prime is 121234540319. The next prime is 121234540391. The reversal of 121234540332 is 233045432121.

It is a super-2 number, since 2×1212345403322 (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 121234540332.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256294 + ... + 555117.

Almost surely, 2121234540332 is an apocalyptic number.

121234540332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121234540332 is an abundant number, since it is smaller than the sum of its proper divisors (161669121940).

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

121234540332 is a wasteful number, since it uses less digits than its factorization.

121234540332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823869 (or 823867 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 121234540332 its reverse (233045432121), we get a palindrome (354279972453).

The spelling of 121234540332 in words is "one hundred twenty-one billion, two hundred thirty-four million, five hundred forty thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 12451 24902 37353 49804 74706 149412 811411 1622822 2434233 3245644 4868466 9736932 10102878361 20205756722 30308635083 40411513444 60617270166 121234540332