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20123001131108 = 2212739612206951
BaseRepresentation
bin1001001001101010000000…
…10101011001000001100100
32122020201222112210101002012
410210311000111121001210
510114143401242143413
6110444213515133352
74144560504260441
oct444650025310144
978221875711065
1020123001131108
1164591315953a7
12230bb80444258
13b2c78b18a415
144d7d5bdc29c8
1524d6a35557a8
hex124d40559064

20123001131108 has 12 divisors (see below), whose sum is σ = 35492537428992. Its totient is φ = 9982276151400.

The previous prime is 20123001131089. The next prime is 20123001131159. The reversal of 20123001131108 is 80113110032102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19806102968 + ... + 19806103983.

It is an arithmetic number, because the mean of its divisors is an integer number (2957711452416).

Almost surely, 220123001131108 is an apocalyptic number.

It is an amenable number.

20123001131108 is a deficient number, since it is larger than the sum of its proper divisors (15369536297884).

20123001131108 is a wasteful number, since it uses less digits than its factorization.

20123001131108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39612207082 (or 39612207080 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 20123001131108 in words is "twenty trillion, one hundred twenty-three billion, one million, one hundred thirty-one thousand, one hundred eight".

Divisors: 1 2 4 127 254 508 39612206951 79224413902 158448827804 5030750282777 10061500565554 20123001131108