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3121142441 is a prime number
BaseRepresentation
bin1011101000001000…
…1101101010101001
322001111222110112012
42322002031222221
522343003024231
61233412525305
7140226162434
oct27202155251
98044873465
103121142441
11136189256a
12731320835
133a981b461
1421873c81b
15134022e2b
hexba08daa9

3121142441 has 2 divisors, whose sum is σ = 3121142442. Its totient is φ = 3121142440.

The previous prime is 3121142417. The next prime is 3121142449. The reversal of 3121142441 is 1442411213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2788262416 + 332880025 = 52804^2 + 18245^2 .

It is a cyclic number.

It is not a de Polignac number, because 3121142441 - 218 = 3120880297 is a prime.

It is a super-2 number, since 2×31211424412 = 19483060274022876962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3121142449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560571220 + 1560571221.

It is an arithmetic number, because the mean of its divisors is an integer number (1560571221).

Almost surely, 23121142441 is an apocalyptic number.

It is an amenable number.

3121142441 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121142441 is an equidigital number, since it uses as much as digits as its factorization.

3121142441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 23.

The square root of 3121142441 is about 55867.1857265068. The cubic root of 3121142441 is about 1461.4070442869.

Adding to 3121142441 its reverse (1442411213), we get a palindrome (4563553654).

The spelling of 3121142441 in words is "three billion, one hundred twenty-one million, one hundred forty-two thousand, four hundred forty-one".