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12123001033 = 111384776231
BaseRepresentation
bin10110100101001011…
…00101000011001001
31011021212120021001021
423102211211003021
5144311442013113
65322541552441
7606263544223
oct132245450311
934255507037
1012123001033
115161133120
122423b75721
1311b279c6c0
148300b9413
154ae46a48d
hex2d29650c9

12123001033 has 8 divisors (see below), whose sum is σ = 14242406976. Its totient is φ = 10173147600.

The previous prime is 12123001021. The next prime is 12123001063. The reversal of 12123001033 is 33010032121.

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

It is a de Polignac number, because none of the positive numbers 2k-12123001033 is a prime.

It is a super-2 number, since 2×121230010332 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12123000998 and 12123001016.

It is not an unprimeable number, because it can be changed into a prime (12123001063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42387973 + ... + 42388258.

It is an arithmetic number, because the mean of its divisors is an integer number (1780300872).

Almost surely, 212123001033 is an apocalyptic number.

12123001033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12123001033 is a deficient number, since it is larger than the sum of its proper divisors (2119405943).

12123001033 is a wasteful number, since it uses less digits than its factorization.

12123001033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84776255.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12123001033 its reverse (33010032121), we get a palindrome (45133033154).

The spelling of 12123001033 in words is "twelve billion, one hundred twenty-three million, one thousand, thirty-three".

Divisors: 1 11 13 143 84776231 932538541 1102091003 12123001033