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12110432020 = 225605521601
BaseRepresentation
bin10110100011101011…
…01000011100010100
31011020222220200121021
423101311220130110
5144300232311040
65321412330524
7606051654661
oct132165503424
934228820537
1012110432020
115155028905
12241b913a44
1311accbb70b
1482c566a68
154ad2d624a
hex2d1d68714

12110432020 has 12 divisors (see below), whose sum is σ = 25431907284. Its totient is φ = 4844172800.

The previous prime is 12110432003. The next prime is 12110432023. The reversal of 12110432020 is 2023401121.

It can be written as a sum of positive squares in 2 ways, for example, as 5091678736 + 7018753284 = 71356^2 + 83778^2 .

It is a super-2 number, since 2×121104320202 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12110431985 and 12110432003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110432023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302760781 + ... + 302760820.

It is an arithmetic number, because the mean of its divisors is an integer number (2119325607).

Almost surely, 212110432020 is an apocalyptic number.

12110432020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110432020 is an abundant number, since it is smaller than the sum of its proper divisors (13321475264).

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

12110432020 is a wasteful number, since it uses less digits than its factorization.

12110432020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605521610 (or 605521608 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12110432020 its reverse (2023401121), we get a palindrome (14133833141).

The spelling of 12110432020 in words is "twelve billion, one hundred ten million, four hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 605521601 1211043202 2422086404 3027608005 6055216010 12110432020