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12102031010 = 251210203101
BaseRepresentation
bin10110100010101011…
…00101011010100010
31011020102002212120202
423101111211122202
5144241104443020
65320512305202
7605620365146
oct132125453242
934212085522
1012102031010
115150310023
122418b42202
1311ab3398c4
1482b3bb226
154ac6c6e75
hex2d15656a2

12102031010 has 8 divisors (see below), whose sum is σ = 21783655836. Its totient is φ = 4840812400.

The previous prime is 12102030991. The next prime is 12102031037. The reversal of 12102031010 is 1013020121.

It can be written as a sum of positive squares in 2 ways, for example, as 11532397321 + 569633689 = 107389^2 + 23867^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12102030982 and 12102031000.

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, 605101541 + ... + 605101560.

Almost surely, 212102031010 is an apocalyptic number.

12102031010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102031010 is a deficient number, since it is larger than the sum of its proper divisors (9681624826).

12102031010 is a wasteful number, since it uses less digits than its factorization.

12102031010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210203108.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12102031010 its reverse (1013020121), we get a palindrome (13115051131).

The spelling of 12102031010 in words is "twelve billion, one hundred two million, thirty-one thousand, ten".

Divisors: 1 2 5 10 1210203101 2420406202 6051015505 12102031010