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12101313020 = 2253531714067
BaseRepresentation
bin10110100010100101…
…10110000111111100
31011020100202101200112
423101102312013330
5144240414004040
65320445045152
7605611314656
oct132122660774
934210671615
1012101313020
11514a96a645
1224188567b8
1311ab147b64
1482b2716d6
154ac5d4365
hex2d14b61fc

12101313020 has 24 divisors (see below), whose sum is σ = 25484763024. Its totient is φ = 4826809856.

The previous prime is 12101313019. The next prime is 12101313043. The reversal of 12101313020 is 2031310121.

It is a junction number, because it is equal to n+sod(n) for n = 12101312986 and 12101313004.

It is a congruent number.

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, 849974 + ... + 864093.

It is an arithmetic number, because the mean of its divisors is an integer number (1061865126).

Almost surely, 212101313020 is an apocalyptic number.

12101313020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101313020 is an abundant number, since it is smaller than the sum of its proper divisors (13383450004).

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

12101313020 is a wasteful number, since it uses less digits than its factorization.

12101313020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714429 (or 1714427 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12101313020 its reverse (2031310121), we get a palindrome (14132623141).

The spelling of 12101313020 in words is "twelve billion, one hundred one million, three hundred thirteen thousand, twenty".

Divisors: 1 2 4 5 10 20 353 706 1412 1765 3530 7060 1714067 3428134 6856268 8570335 17140670 34281340 605065651 1210131302 2420262604 3025328255 6050656510 12101313020