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3121000122 = 232811851127
BaseRepresentation
bin1011101000000110…
…1010111010111010
322001111201020022010
42322001222322322
522342434000442
61233405510350
7140225030502
oct27201527272
98044636263
103121000122
1113617a5649
127312723b6
133a979b746
14218702a02
15133ee5b9c
hexba06aeba

3121000122 has 16 divisors (see below), whose sum is σ = 6264217152. Its totient is φ = 1036630560.

The previous prime is 3121000117. The next prime is 3121000153. The reversal of 3121000122 is 2210001213.

It is a junction number, because it is equal to n+sod(n) for n = 3121000098 and 3121000107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923878 + ... + 927249.

It is an arithmetic number, because the mean of its divisors is an integer number (391513572).

Almost surely, 23121000122 is an apocalyptic number.

3121000122 is an abundant number, since it is smaller than the sum of its proper divisors (3143217030).

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

3121000122 is a wasteful number, since it uses less digits than its factorization.

3121000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851413.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3121000122 is about 55865.9119857539. The cubic root of 3121000122 is about 1461.3848313575.

Adding to 3121000122 its reverse (2210001213), we get a palindrome (5331001335).

The spelling of 3121000122 in words is "three billion, one hundred twenty-one million, one hundred twenty-two", and thus it is an aban number.

Divisors: 1 2 3 6 281 562 843 1686 1851127 3702254 5553381 11106762 520166687 1040333374 1560500061 3121000122