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123032102020 = 22579719108301
BaseRepresentation
bin111001010010101001…
…0001110010010000100
3102202120022121100112021
41302211102032102010
54003432204231040
6132304204532524
711613564416662
oct1624522162204
9382508540467
10123032102020
11481a5461263
121ba17251144
13b7a942b589
145d51d07c32
15330128b24a
hex1ca548e484

123032102020 has 48 divisors (see below), whose sum is σ = 262004198400. Its totient is φ = 48521865600.

The previous prime is 123032102009. The next prime is 123032102023. The reversal of 123032102020 is 20201230321.

It is a junction number, because it is equal to n+sod(n) for n = 123032101985 and 123032102003.

It is not an unprimeable number, because it can be changed into a prime (123032102023) 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, 1081870 + ... + 1190170.

It is an arithmetic number, because the mean of its divisors is an integer number (5458420800).

Almost surely, 2123032102020 is an apocalyptic number.

123032102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123032102020 is an abundant number, since it is smaller than the sum of its proper divisors (138972096380).

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

123032102020 is a wasteful number, since it uses less digits than its factorization.

123032102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109108 (or 109106 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 123032102020 its reverse (20201230321), we get a palindrome (143233332341).

The spelling of 123032102020 in words is "one hundred twenty-three billion, thirty-two million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 719 790 1438 1580 2876 3595 7190 14380 56801 108301 113602 216602 227204 284005 433204 541505 568010 1083010 1136020 2166020 8555779 17111558 34223116 42778895 77868419 85557790 155736838 171115580 311473676 389342095 778684190 1557368380 6151605101 12303210202 24606420404 30758025505 61516051010 123032102020