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1211331132130 = 25779219047221
BaseRepresentation
bin10001101000001000111…
…101100011101011100010
311021210122202020021002211
4101220020331203223202
5124321301232212010
62324251114032334
7153341625510460
oct21501075435342
94253582207084
101211331132130
114277a49323a9
121769204186aa
138a2c6cc0512
14428b3393830
152179988808a
hex11a08f63ae2

1211331132130 has 32 divisors (see below), whose sum is σ = 2523423997440. Its totient is φ = 410056395840.

The previous prime is 1211331132091. The next prime is 1211331132157. The reversal of 1211331132130 is 312311331121.

It is a super-2 number, since 2×12113311321302 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109518081 + ... + 109529140.

It is an arithmetic number, because the mean of its divisors is an integer number (78856999920).

Almost surely, 21211331132130 is an apocalyptic number.

1211331132130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211331132130 is an abundant number, since it is smaller than the sum of its proper divisors (1312092865310).

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

1211331132130 is a wasteful number, since it uses less digits than its factorization.

1211331132130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219047314.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1211331132130 its reverse (312311331121), we get a palindrome (1523642463251).

The spelling of 1211331132130 in words is "one trillion, two hundred eleven billion, three hundred thirty-one million, one hundred thirty-two thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 79 158 395 553 790 1106 2765 5530 219047221 438094442 1095236105 1533330547 2190472210 3066661094 7666652735 15333305470 17304730459 34609460918 86523652295 121133113213 173047304590 242266226426 605665566065 1211331132130