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3331123131 = 37173916907
BaseRepresentation
bin1100011010001100…
…1110011110111011
322121011002120212210
43012203032132323
523310231420011
61310313310203
7145356036150
oct30643163673
98534076783
103331123131
11145a372126
1278b705363
1341118b59b
1423859c227
1514769e6a6
hexc68ce7bb

3331123131 has 16 divisors (see below), whose sum is σ = 5105343744. Its totient is φ = 1892493984.

The previous prime is 3331123109. The next prime is 3331123141. The reversal of 3331123131 is 1313211333.

It is not a de Polignac number, because 3331123131 - 214 = 3331106747 is a prime.

It is a super-2 number, since 2×33311231312 = 22192762627766486322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 3331123098 and 3331123107.

It is not an unprimeable number, because it can be changed into a prime (3331123141) by changing a digit.

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, 454821 + ... + 462086.

It is an arithmetic number, because the mean of its divisors is an integer number (319083984).

Almost surely, 23331123131 is an apocalyptic number.

3331123131 is a deficient number, since it is larger than the sum of its proper divisors (1774220613).

3331123131 is a wasteful number, since it uses less digits than its factorization.

3331123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917090.

The product of its digits is 486, while the sum is 21.

The square root of 3331123131 is about 57715.8828313316. The cubic root of 3331123131 is about 1493.4713488125.

Adding to 3331123131 its reverse (1313211333), we get a palindrome (4644334464).

The spelling of 3331123131 in words is "three billion, three hundred thirty-one million, one hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 3 7 21 173 519 1211 3633 916907 2750721 6418349 19255047 158624911 475874733 1110374377 3331123131